That’s possible, but I can’t know for sure because Amazon never provided any concrete details. I didn’t receive any warning emails, only a cryptic message after the ban:

> "Amazon.co.uk found that the rate at which refunds were occurring on your account was extraordinary and could not continue."

After looking through my order history, the only refund I could find on this account was the one related to the book I mentioned above. If there was any other activity or misuse, Amazon hasn’t disclosed it to me, which makes it impossible to verify or dispute their conclusion.