My Professional view: I honestly have no idea why he is complaining, he just seems to want to cry and moan about something. I really don't believe you can get in any trouble at all, he has no case nor does he want to actually take legal action. I'd put it back up, once you make sure its fine.

My immature view: This guy needs to suck a fat one, on the other hand iv tryed his T-6 Red Ale and I could make better. It was pretty bad.