There you go again, saying "customer service" when talking about dealing with a person who isn't a customer.

They haven't provided poor service. They have provided *no* service, because they aren't doing business with him.

They haven't damaged their reputation. Their reputation is "we arrange autographs" (well or poorly, I have no idea, I've never dealt with them). "we respond to emails" (or don't) has no bearing on that.

They don't sell anything that is not supply-side limited.