With regards to that letter that you mentioned, were they asking you to write the letter and sign it? Or was this a letter that needed to be provided by the retailer?
This is what they wrote (minus the specific details).
"Thank you for submitting your Return Protection claim. In order to continue processing your claim, we need you to provide Proof of Loss documentation as described below.
"What documentation do we need from you?
"Please submit supporting documentation showing item did not received credits nor return to merchant, credit is for $___.__ on __/__/20__ (return window closed)."
This was back in 2021. I wrote to the store and asked them to write a letter saying that I didn't return or exchange the item, and that I didn't receive a refund for any part of the money I spent, and that's what I submitted, and it got approved within a week, from what I remember. The owner of the store e-mailed me the letter, so no, it wasn't physically signed, but it had his e-mail address and phone number if they wanted to contact him to check whether it was really from him. I was suspecting that they'd contact him and try to talk him into allowing the return, but I've never had them do that in six or seven years that I've been using Return Protection, FWIW.