"Additionally, Kadjar was advised that if he were to speak to his credit card company and request a chargeback, he would have his PSN account banned, losing all his purchases, trophies, etc… Which is something Sony has been known to do,according to a few reports on its forums."
I can vouch for this. I used to do that game sharing thing, where you logged into someone else's account and download their games for use on your own profile, and I let people do it to mine. Stupid idea, I know. He then bought about $100 worth of stuff. Got refunded through the credit card company, and now my old account is banned. I thiiiink my purchases still worked, but I lost all my trophies, and that certainly sucked.