deposited money vanished, not on dashboard and no response

I have made a deposit to RCG markets, it reflected on my dashboard then when i was doing a transfer to my mt4 account, the money vanished. tried to chat with customer service, there were not avalable. Rearabilwe logged in and kept quiet the whole day. this is one nonsense broker, how do you not respon to clients when they handle clients monies. i just want my refund