[dangus]

This is a good way to just get banned until you pay.

AWS bills work a lot like postpaid phone bills. When you use the service you agree to pay the bill for usage.

Your suggestion is kind of like saying “If your card declines you don’t have to pay for your meal.” Not really true.

In my experience AWS support has been good about reversing accidental/fraudulent usage charges and helping to prevent them in the future.