This is not an accusation but a complaint about their silly acts but how sure are you that you didn't reveal your login details while they asked you to accessed your binance account to show them all the transaction details and to know whether your names correlate with the one on Rollbit site, don't you think your login could be stolen? My suggestion is when next you are passing through this stage of verifications don't always show them when you start to login your account rather, you should try login first before anything else, I can't trust anyone or any of the staff working on those site.