The first thing you need to understand is that phone calls never protect your rights under the law.
The ONLY way to communicate in a dispute process is in writing.
Always send these written communications via certified mail, return reciept requested, and be sure to put the certified# in the body of the letter itself. This proves exactly what you sent.
If in fact the charge was not yours, and you disputed it correctly, they could not make you pay it. This is FEDERAL LAW under the fair credit billing act.
Did you ever do business at all with the company in question, being World of Warcraft?
Anyway, I have dealt with the crackhead thug mentality of the First Premier bunch.
They still owe me money!