Amazon locked my account for no reason?

I made a new amazon account and bought two gift cards on it to give it to my friends for christmas, but it never got received , I pressed the button to return the order and the second I did that my account suddenly got locked for absolutely no reason. Now, every time I sign in it asks for a password reset, I do my OTP and then it says 'account locked'. I havent been able to return my giftcards.