Unfortunately, as harsh as this sounds... no one is going to believe you. Why? Simply because it would be easy for someone (not calling you a scammer, this is all theoretical) to build up an account, get some green trust, and then forget about it for a couple of months - and realize that it would be a good way to get a couple bucks out of your account after a couple months. Then, simply say that your account was hacked and, magic! your account is back, fresh as ever.

IP logs will be useless, because of VPNs and all those things.

Plus - it seems unlikely (but is entirely possible) that the hacker didn't change the password - although I suppose they may have thought there to be no danger as you may have been away for a while.