Follow Up Complaint Letter

Dear [Mr. X],

I would like to follow up on the complaint you’ve submitted on [some date] regarding [some issue] and to make sure that it was solved as per your expectations.

Please confirm that your complaint has been addressed properly so that I can close your case. If not, then kindly explain what exactly is it that you require so that I can help you better.

Thank you very much for your feedback. Looking forward to helping you.

Regards

Dear [Customer Service],

On [some date], I submitted a complaint regarding [some issue]. Well, I’m sorry to inform you that until now nothing has been done to resolve my problem despite the glamorous promises of a fast and satisfactory solution. I’m disappointed, frustrated, and strongly feel that it was a mistake doing business with you. Feel free to prove me wrong!

Regards