Hi, I am unable to use the free GCP tier account. As soon as I provide my debit card details, it asks to verify the payment method, and I constantly see "A potential violation of our Acceptable user policy has been detected for a project of your own". And I am asked to provide more details regarding the screenshot of the card used. How should I get past this?
Per my experience, debit card doesn’t have a good "successful rate" when being validated with many online payment systems. Especially those cards that don’t have EMV will potentially get lower "successful rate". It also depends on the "reputation" of the bank that issued you the card.
Credit card, on the other hand, must go through a complicated validation process (to validate the financial ability of holder) before being issued to you, so it has higher "reputation" than debit card. So unless the credit card was reported as stolen or expire, you would likely always have a "successful validation" when adding to any online payment system.
In this case, it seems that Google Cloud didn’t trust your debit card bank or the card has a number in an unknown range. Unfortunately, there’s nothing that you can do except following the instruction of Google Support. Or better, get a credit card will help solving the issue. A low credit limit, standard card is OK, you don’t really need a "platinum" or "super VIP" for this purpose.