I have no plans whatsoever in participating in any form of shady shit, bud ... unless it's with goat shit under a giant elm tree (read: in the shade).
You look and sound like good ol' Bruno, which is good enough for me.
Calling him is useless. It literally proves nothing other than he's willing to potentially protect the person who bought it by claiming he's still in control.
If Bruno and the hypothetical buyer are in cahoots then it's impossible to verify the ownership of the account in any conceivable way. Same applies to any account. So we are basically trying to come up with probabilities. I know I brought up the QS conspiracy theory but I think the probability of that one is quite low.