Can you ask your friend to recover it for him? Are you still in contact with the guy, is he from osbot? I have a serious question though, when did you acquire this account?
this right here is making you liable for the refund.
This also proves you've had the account for 6 years(plus its an original log in) And that if you've had the account for 6 years and your "close friend" made it, you will be able to recover it with any information you have. You have 48 hours to refund or recover it if that is what he wants.