Just FYI if this happens to you email jeff@amazon.com and it gets sorted in a few weeks. Happened to my despite being a long time customer with over £20k orders.
I had to email ‘Jeff’ and threaten to sue Amazon as well, sent them an email with a mountain of evidence showing that I was obviously correct and explained that I would easily win at small claims court. I got my money back the next day with no further communication at all.