If you haven't got a signed message or pgp then I would just forget about the account because there's little to no chance of you getting it back.
Its alright i'm confident i'll get it back with or without the admins help, That's cool you have the right to feel that way.
Either way its good to know the scammer has been exposed at-least lol.
And how do you plan to do that ?
If you were so confident of recovering the account on your own , what is the point of this thread ?