We removed access to your AWS account because we could not confirm your payment information

Hello! I've been trying to verify my account since the last Thursday. The scenario is always the same: I get an email from aws-verification@amazon.com, there is a link, and they ask to upload two files which will cover:

-- A copy of a recent statement for your VISA ending in 70, including the billing address. 
-- Your name, phone number, and the email address registered to your AWS account. 

I do it, and after this, I receive the same new message, with the exact text with zero explanations of what is wrong with my files. What I'm attaching:

• a cash flow of the card from my internet banking with a card number, my billing address, and my registration address;
• a PDF file with my personal information.

I don't get any explanations, so may anyone help me with this problem?