Was looking for a specific computer part not that long ago and only place I found indicating stock was seller on Amazon. Never shopped there before but finally

Was looking for a specific computer part not that long ago and only place I found indicating stock was seller on Amazon. Never shopped there before but finally bit the bullet and made an account. Deposited $300 gift card. Amazon blocked my account completely (can not even contact support) and not long after got an email telling me it's due to sanctions suspicion and they require full KYC (including proof of residency and employment!) before I can ever see my $300 back again. I really don't have the energy to fight them for it... Still asked a friend with existing Amazon account to order it for me. The seller cancelled the order saying "out of stock". Our thesis is that seller is a money laundering front without actual product. Somehow Amazon's not closing their accounts, though....