Unable to verify my card for purchases

Basically what title says, it's the same card I've been using for a good 2 years suddenly it was removed from my account and only my credit card remained so I go to add it back lo and behold this damn error of "unable to verify this payment method" I google it and it says it's likely a fraud prevention issue. Well turns out it isn't because the bank have 0 issue with my card being flagged. Any ideas of what it is or if not no worries I just need to vent and since Amazon's support are near enough non-existent I'm settling for here.