....and that's what happened with my account. A refund in the form of a gift card was issued for toilet paper (who returns toilet paper!?) and two items that were shipped to a different address. Now that I have my subscription items set to ship, I got an e-mail from Amazon that says that they noticed that I filed a "claim" saying I didn't receive items in the past so they want me to confirm my address. That just irritated me all the more because I have been telling them over and over that I *DID* receive the items and the claim was NOT a legitimate claim and needs to be voided.
You could load gift cards to the account as you use them keeping the balance of gift cards approx at the amount they need to claw back in case they ever get around to it. After your Prime membership is up I would set up a new account under a new email and essentially let the other one go dormant.
Alternatively you can YOLO and spend it and they can bill you for it if they want it back but if that makes you feel bad or scared don’t do it. Personally I think you’ve done more than you need to do and if Amazon doesn’t want their money back you certainly don’t need to take time out of your days anymore to try to force them to. Only you can decide if you want to spend it or not. (And no, they aren’t going to compensate you for your time in this disaster. Your time is worth $0 to them.)
this is the reason i only use my amazon/chase credit card for amazon purchases-in fact i use it only for amazon purchases. i initially got it b/c they offered a NICE sign up amount and i figured with the 5% rewards it would save me some money on recurring/holiday purchases. little did i know how fast chase can resolve an amazon issue when they are pulled into the mix. i only buy stuff fulfilled by amazon or that they put their guarantee on so on 2 separate occasions, like the op has experienced-i went round and round w/amazon trying to resolve an issue and i finally threw my hands in the air and called chase to dispute the charges. in both cases it took the initial phone call w/a chase rep getting the info and asking me if they could research it and get back to me before filing the official dispute-and in less than 24 hours the charges were reversed and amazon gifted me with separate gift cards on my account 'for your inconvenience in unsuccessfully attempting to resolve this directly with our representatives'.
me thinks chase sez 'jump' and amazon sez 'how high?'.