[Bish0pQ]

I don't think they are, but it's still Amazon, so a company this large will use a centralized system. That means that they'll probably use their own system to check whether how much times you have refunded etc, but if they'll get suspicious I think the possibility is quite high that they'll pull data from the other Amazon's as well. I don't know what they keep but I'd be careful that you don't raise too many flags.