How do you write a letter requesting a refund?

To compose a claim or demand letter, write a concise and factual review of the facts in a serious, formal tone and ask for a little more than what's needed to allow for negotiation. Proofread the letter, make copies of it and send it via certified mail.

Use a firm tone but be polite, as a demand letter can be used as evidence in small claims court when it's sent by certified mail. Indicate a willingness to pursue legal solutions in the body of the letter prior to its closing, and keep records of all replies, including phone calls, after it is sent.