I have the same question and your answer does not help me. I'm selling digital pdf files in my shop and offer 100% refund if customer don't like my product. It is ok for me to refund money to a customer once, but I don't want him to buy any other products from my shop as if he don't like one of my products he also will not like the other ones. As I see, it is very ease for some people say "I don't like it and want my money back" and buy again from me. My sales are automatical and I don't see any solution how can I stop him buying from my shop. The only thing I cand do is not refund money to him. Maybe you see any other solutions to this problem?
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