Uncredited Deposit

I deposited money using my card and the transaction was successful, but my Goldrush account wasn't credited. I contacted Goldrush through Live Chat and via email, explaining what had occurred. They keep on asking for Proof of Payment. I sent them my bank statement and still they're unable to help. I already went to the bank for this and there's no proof except for the statement. It was a CARD PAYMENT not an EFT. Speaking to their consultants is the same as speaking to robots, they're programmed. They're not helpful at all.