Scam Broker

I withdraw 5,222 USD, and covert rate to Ringgit Malaysia was RM4.67, I understand that there's the price difference when BUY and SELL USD, when I got the money in my bank, I just get RM 22,511 ÷ 5222 = RM 4.31 convert rate, which is totally ridiculous. PLEASE AWARE ABOUT THIS BROKER