I agree that they should be more responsive. I have probably seen too much already to be surprised by this behaviour, though I understand you being annoyed. As a punter looking to get things solved - which includes a payment from a bookmaker - you are always the idiot By going public with this incident, you are on the right track already and I hope you get your deposit back, which is a fair compromise then imo.

What amazes me though: You deposit 1.1 BTC into a bookmaker and are/were not aware of this multi-accounting rule. There are not a lot of people depositing such big amounts and these people are no noobs in this business normally and know the "industry standards".
With your posts and the obliviousness about that rule, you seem to be a newbie (which is not bad, no offence). But then again you made profits with three different accounts, which is rather unusual for newbies - they normally lose a lot in the beginnning, but there are some naturally gifted people also

If you want to share: Which sports did you bet on ? Sportsbet had some "problems" recently with russian accounts and bets on table tennis from those accounts. Maybe thats the reason for the silence or the investigation taking so long.