this happend to me, i sold a dh axe for 1.4m , then the next morning back in my bank. i tohught i was hulloosinating, yes i no it spelled wrrong, because i sniffed some paint marker lol..yea stupid thing, but then i found out it a rollbak.
but there mite be a way to dupe with the roll back. for example
1. use elite switch multi log in
2. give money or something to other file
3. log in/ out next day, it mite b duped..
only thing is we dont know when there will be a roll back..