How to Write Effective Complaint Letters - 15 Templates for Various Issues

Complaint Letter Generator

1. Complaint Letter to Bank (Regarding Unauthorized Transaction)

Subject: Complaint Regarding Unauthorized Transaction on Account [Account Number] 

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

Branch Manager
[Bank Name]
[Branch Address]
[City, State, ZIP Code]

Dear Sir/Madam,

I am writing to file a formal complaint regarding an unauthorized transaction that occurred in my account [Account Number] on [Date of Incident]. The amount of [Amount] was debited from my account without my knowledge or approval.

I request that you investigate this matter immediately and reverse the charge. Please provide me with an update on the status of this complaint as soon as possible.

Thank you for your prompt attention to this matter.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


2. Complaint Letter Against a Teacher (Regarding Unprofessional Behavior)

Subject: Complaint Against Teacher [Teacher’s Name] for Unprofessional Behavior

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

Principal
[School Name]
[School Address]
[City, State, ZIP Code]

Dear [Principal’s Name],

I am writing to formally complain about the unprofessional behavior of [Teacher’s Name], who teaches [Subject] at your school. My child, [Child’s Name], a student in [Grade/Class], has reported incidents of [Describe Behavior: e.g., harsh treatment, unprofessional language, unfair grading practices].

I respectfully request that you investigate this issue and take appropriate action. I trust the school will ensure that a positive and respectful learning environment is maintained for all students.

Thank you for your attention to this matter. I look forward to your response.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


3. Complaint Letter to Police (Regarding Harassment)

Subject: Complaint Regarding Harassment by [Name of Person]

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

Officer-in-Charge
[Police Station Name]
[Police Station Address]
[City, State, ZIP Code]

Dear Sir/Madam,

I wish to file a formal complaint regarding harassment I have been experiencing from [Name of Person]. Over the past [X days/weeks], I have been subjected to [Describe the nature of harassment, e.g., unwanted calls, stalking, verbal abuse].

Please treat this complaint as urgent and investigate the matter. I would appreciate any guidance on further steps I should take to ensure my safety.

Thank you for your immediate attention to this matter.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


4. Complaint Letter to Electricity Department (Regarding Frequent Power Outages)

Subject: Complaint Regarding Frequent Power Outages in [Area/Neighborhood Name]

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

Manager
[Electricity Department Name]
[Department Address]
[City, State, ZIP Code]

Dear Sir/Madam,

I am writing to express my concern about the frequent power outages in our area, [Area Name], over the past [X days/weeks]. These outages have disrupted daily life and caused significant inconvenience.

I kindly request that you investigate the cause of these frequent disruptions and take necessary action to ensure a reliable power supply in our area.

Thank you for addressing this issue at your earliest convenience.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


5. Complaint Letter for Bad Customer Service (In a Store)

Subject: Complaint Regarding Poor Customer Service at [Store Name]

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

Store Manager
[Store Name]
[Store Address]
[City, State, ZIP Code]

Dear Sir/Madam,

I am writing to formally complain about the poor customer service I received at your [Store Name] on [Date of Incident]. I was assisted by [Staff Member’s Name], who was [Describe Behavior: rude, unhelpful, inattentive, etc.].

This behavior does not reflect the standard of service I expect from [Store Name]. I kindly request that you look into this issue and ensure that it does not happen again in the future.

I look forward to your response and resolution of this matter.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


6. Complaint Letter About Food Quality (At a Restaurant)

Subject: Complaint Regarding Poor Quality of Food at [Restaurant Name]

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

Restaurant Manager
[Restaurant Name]
[Restaurant Address]
[City, State, ZIP Code]

Dear Sir/Madam,

I am writing to express my dissatisfaction with the food I received at your restaurant on [Date of Visit]. The [Dish Name] I ordered was [Describe Issue: cold, undercooked, poorly prepared, etc.], and did not meet the quality standards I have come to expect from your establishment.

I kindly request a refund or compensation for this unsatisfactory dining experience. I hope you will address this issue to improve your service.

Thank you for your attention to this matter. I look forward to your response.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


7. Complaint Letter About an Employee's Rudeness (To Employer or HR)

Subject: Complaint Regarding Employee's Rudeness - [Employee's Name]

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

HR Manager
[Company Name]
[Company Address]
[City, State, ZIP Code]

Dear Sir/Madam,

I am writing to formally complain about the rude behavior of your employee, [Employee's Name], who works at [Department/Position]. During my interaction with them on [Date], I was treated with disrespect when I approached them with a question regarding [Explain the issue or service needed].

I believe this behavior is unacceptable and does not align with the values of your company. I would appreciate it if you could address this issue and ensure better customer service in the future.

Thank you for your prompt attention to this matter.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


Complaint Letter to School Principal (Regarding Poor Teacher Behavior)

Subject: Complaint Regarding Teacher’s Behavior in Class

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

Principal
[School Name]
[School Address]
[City, State, ZIP Code]

Dear [Principal’s Name],

I am writing to formally complain about the behavior of [Teacher’s Name], who teaches [Subject] in [Grade/Class]. My child, [Child’s Name], has reported instances of [Describe Behavior: unfair treatment, bullying, unprofessional conduct, etc.] during class.

I am deeply concerned about the impact of this behavior on my child’s academic experience and emotional well-being. I respectfully request that you look into this matter and take appropriate action.

Thank you for your immediate attention to this issue. I look forward to your response.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


Complaint Letter to a Landlord (Regarding Maintenance Issues)

Subject: Urgent Complaint Regarding Maintenance Issues in [Apartment/House Name]

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

[Landlord’s Name]
[Landlord’s Address]
[City, State, ZIP Code]

Dear [Landlord’s Name],

I am writing to bring to your attention several maintenance issues in my apartment [Apartment Number] at [Building Name]. These issues, including [list issues: e.g., broken plumbing, heating system malfunction, etc.], have been ongoing for [X days/weeks] and have not been addressed despite previous requests.

I kindly request that these issues be resolved promptly, as they are affecting my comfort and quality of life. Please inform me of the steps you intend to take to address these concerns.

Thank you for your cooperation. I look forward to your swift resolution of this matter.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


10. Complaint Letter Regarding Noise Disturbance (To Authorities)

Subject: Complaint Regarding Persistent Noise Disturbance in [Area/Neighborhood]

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

[Local Authorities or Noise Control Department]
[Address]
[City, State, ZIP Code]

Dear Sir/Madam,

I am writing to file a complaint about the persistent noise disturbance coming from [describe source: e.g., construction site, loud music, party, etc.] in the [Area/Neighborhood] during late-night hours. The noise has been ongoing for the past [X days/weeks], causing significant disruption to my daily life and affecting my health and well-being.

I request that you investigate this issue and take the necessary actions to ensure that the noise levels are controlled in accordance with local ordinances.

I appreciate your attention to this matter and look forward to a timely resolution.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


11. Complaint Letter to a Hotel (Regarding Poor Service)

Subject: Complaint Regarding Poor Service at [Hotel Name]

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

Manager
[Hotel Name]
[Hotel Address]
[City, State, ZIP Code]

Dear Sir/Madam,

I am writing to express my dissatisfaction with the quality of service I received during my recent stay at [Hotel Name] from [Check-in Date] to [Check-out Date]. Specifically, I experienced issues with [List Issues: room cleanliness, unhelpful staff, late room service, etc.], which were disappointing given the reputation of your hotel.

I would appreciate it if you could look into these matters and take the necessary steps to improve the quality of service for future guests.

Thank you for your attention. I look forward to your response and a resolution to these issues.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


12. Complaint Letter Regarding Refund Request (To a Company)

Subject: Complaint Regarding Pending Refund for Order [Order Number]

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

Customer Service
[Company Name]
[Company Address]
[City, State, ZIP Code]

Dear Sir/Madam,

I am writing to follow up on my refund request for Order Number [Order Number], placed on [Order Date]. Despite my earlier communication, I have not yet received the refund of [Amount] as promised.

I kindly request that you expedite the processing of my refund and confirm the status of my request. If necessary, please provide me with the expected timeline for receiving my refund.

Thank you for your prompt attention to this matter.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


13. Complaint Letter to a Service Provider (Regarding Unresolved Service Issue)

Subject: Formal Complaint Regarding Unresolved Service Issue

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

[Service Provider’s Name]
[Service Provider’s Address]
[City, State, ZIP Code]

Dear [Service Provider’s Name],

I am writing to express my dissatisfaction with the ongoing issues I’ve encountered with the [Service Type] service provided by your company. Despite several requests for assistance, my issue with [describe issue] remains unresolved.

I expect that you address this matter immediately, and I would appreciate an update on the status of the resolution. If the issue is not resolved promptly, I will have no choice but to escalate the matter.

Thank you for your immediate attention.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


14. Complaint Letter to a University (Regarding Poor Campus Facilities)

Subject: Complaint Regarding Poor Condition of Campus Facilities

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

Dean of Students
[University Name]
[University Address]
[City, State, ZIP Code]

Dear [Dean’s Name],

I am writing to formally complain about the poor condition of the facilities at [University Name], specifically [describe the issue: e.g., unclean restrooms, broken equipment, etc.]. As a student at this university, I believe the quality of facilities should reflect the high standards of education provided.

I respectfully request that these issues be addressed at the earliest opportunity to ensure a better experience for all students.

Thank you for your prompt attention.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


15. Complaint Letter Regarding Unprofessional Behavior (From a Co-worker)

Subject: Complaint Regarding Unprofessional Behavior by [Co-worker’s Name]

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

HR Manager
[Company Name]
[Company Address]
[City, State, ZIP Code]

Dear [HR Manager’s Name],

I am writing to formally complain about the unprofessional behavior exhibited by my colleague, [Co-worker’s Name], in the workplace. On [Date], [he/she/they] exhibited [describe behavior: e.g., rudeness, verbal abuse, inappropriate conduct, etc.].

This behavior has made it difficult to maintain a positive and professional work environment. I kindly request that this issue be investigated and that appropriate action be taken.

Thank you for your attention to this matter. I look forward to your response.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]


16. Complaint Letter Regarding Delay in Delivery (From an Online Store)

Subject: Complaint Regarding Delay in Delivery of Order [Order Number]

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Phone Number]
[Email Address]
[Date]

Customer Support
[Company Name]
[Company Address]
[City, State, ZIP Code]

Dear Sir/Madam,

I am writing to express my frustration regarding the delayed delivery of my order, [Order Number], which was placed on [Order Date]. The expected delivery date has passed, and I have yet to receive my order.

Please provide me with an update on the status of my delivery and a new expected delivery date. If the delay is not resolved promptly, I will be forced to reconsider my future orders with your company.

Thank you for your assistance in resolving this matter.

Sincerely,
[Your Full Name]
[Your Signature (if submitting a hard copy)]
[Your Contact Information]

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