People new to the organisation have to work under the supervision of someone more experienced and knowledgeable than they are. The person who supervises the team and steers it in the right direction is known as the supervisor. The supervisor has many responsibilities to fulfil, and just like any other employee in the company, it is his responsibility to act professionally.
If you feel your supervisor is not acting professionally and is upsetting you with his bad behaviour, you can write to the manager to report it.
What is the letter regarding the supervisor’s unprofessional behaviour?
It is a formal complaint letter in which you convey to the manager that the team supervisor you have been added to is not behaving well. This letter aims to let the manager know that the supervisor needs to be asked to behave well.
Why is it important?
In any organisation, supervisors have a critical role to perform. Those who don’t act up to the company’s expectations fail to supervise their team well, and their team fails to deliver. So, the manager needs to know that the supervisor is slightly off track.
In addition, you are not entitled to tolerate any person’s rude behaviour or abusive language, no matter where you work. If you feel you are not being given the respect you deserve, you can ask the manager to take the situation into his hands.
How to write?
Writing a complaint letter against someone you work with is critical and challenging. You need to be careful with your choice of words, tone, and content.
Follow the tips given below:
Give your and your supervisor’s introduction
When you start the letter, ensure you don’t miss giving your and your supervisor’s introductions. This will help the reader know which supervisor you are referring to. Don’t forget to mention the name of the department.
Describe the unprofessional behaviour of the supervisor:
Tell the reader how you found the supervisor’s behavior inappropriate. Ensure you don’t use words in your letter that show you have some personal grudge against him. If you have any incident in your mind that you can write about to explain your complaint, go with it. Ensure you don’t write a too-long letter with many bad things about the senior.
Tell the manager what you want:
Inform the manager that you want him to take action on the matter you are referring to. Also, clear to the reader that you don’t hold onto anything against the supervisor and respect him for his seniority.
Close the letter appropriately:
In the end, state that you are looking forward to a quick resolution of the issue you are facing. Also, explain that you will never belittle the supervisor’s hard work in building a strong team.
Sample letter:
Subject: Complaint against supervisor’s unprofessional behavior
Respected sir,
I am (mention your name), and I have been a salesperson in the sales department for more than 10 years. I am writing to inform you about the supervisor’s unprofessional behavior. Our supervisor (mention the name) treats me poorly. He is very rude to me and also does not use respectful language.
His unprofessional behaviour has lowered my self-esteem, and I feel bad about myself. I want to draw your attention to his bad behaviour so that you take the necessary steps to correct it. I have no personal grudges against my supervisor, and I always look up to him as a senior and experienced member of the organisation from whom I can learn a lot. I hope that you will pay attention to this complaint letter.

File: Word (.docx) & iPad
Size 21 KB
See also:
- First Warning Letter for Negligence of Duty
- Ramadan Schedule Notification for Staff
- One Day Absent Note to Boss
- Request Letter to Staff for Voluntary Deduction from Salary
- Holiday Closing Messages
- Letter Requesting Transfer to another Department
- Letter Requesting Promotion Consideration
- Umrah Leave Request Letter to Boss
- Ramadan Office Schedule Announcement Letters/Emails
- Letter to Friend Expressing Support
- Letter to Employer Requesting Mental Health Accommodation
- Letter Requesting Reference Check Information
- Letter Requesting Salary Certificate
- Letter Requesting Recommendation from Previous Employer
- One Hour Off Permission Letter to HR