Olymptrade refused to refund

I transfered bitcoin from my wallet to Olymptrade to fund a trading account I opened with them but the money did not reflect in my trading account after several days. I queried it and they responded that they refunded the money to my wallet and till date, the money haven't been received. I investigated and discovered that the wallet they claimed they sent my bitcoin to was fraudulent as it was the same one they provided for the bitcoin to be deposited to in the first place