See my last post on that thread.
OP's profile shows he is still dealing by pm as I type. I suggest anyone who is in the process of buying to be alerted to the possibility that there are scammers selling vouchers bought by stolen credit cards. The OP may not be one of these, but it crtainly has all the usual markings of such a scam.
EDIT (12:37): A mod seems to have moved this from the FS/T forum to Misc. without saying so. Since I have banned myself from misc. I cannot post in the thread without giving away £10 -- so I'm staying out of it until it is acknowledged that posting in THIS thread does not count as posting in Misc...