First, you make a trial account, upgrade it with your Wow + Tbc key you bought. You must name the Trial account with the same name as the orgrinal account. Upgrade it with the keys. Buy a transfer to your new account.
If it's EU you MUST find SQ, or you can't xfer it. Otherwise, you just need Last name, if i remember right.
After the xfer, go and speedhack in a WSG or something, get banned for 48-72 hours, then do it again and it's Perma ban.
Hope this helped !