looking at their event thread it seems that they were paying. it possible that they are waiting for more submissions on their event thread before they make a transaction paying the participants on their event. I guess all you can do right now is wait. sure it sucks but there's really nothing you or I can do about it.
no respown anything
BetBtc have recently declared that they are going to close their platform but users will be able to withdraw their fund until September. You can check there recent reply here,
BetBtc is closed nowBetBtc Bitcointalk account was active today and you should wait for their response. They are not giving response to your message that doesn't mean you got scammed. Usually betting platforms receive large number of open ticket, emails and texts and it requires time to solve all one by one. Most probably they are facing something similar like that and you can wait little longer for their response.
I hope they will respond on your PM soon and do not forget to give your update here.