The more I think about it the more it looks like Rambotnic was trying to shake ginalli down for 5 BTC. I can't think of any reasonable explanation why someone would insist on paying scammers (whether it's a scammy casino or someone pretending to be a casino "admin") a "bribe" for a withdrawal. I re-read the chat for the third time and all Rambotnic's excuses seem to have been made up after the conversation was concluded. And the whole idea of a "bribe" - as marlboroza pointed out - seems to have been brought up by Rambotnic before ginalli was contacted by the person asking for the "bribe".