Severe slippage

On December 1, 2020, I made two orders at 10:15:31 and 10:18:18 with Dow Jones index US30 and stop loss of 30030. As a result, the GMI platform risk control forcibly pulled out the stop loss at 11:29:21. At that time, the highest price of MT4 in computer version of GMI platform Dow Jones index US30 was 30022.2, while the highest price of MT4 in mobile version was 30020.7. The malicious risk control behavior of the platform directly led to the loss of 15900 US dollars and about 100000 RMB in two orders! I strongly request GMI platform to compensate all losses arising from this transaction. It has been six months now, and the platform did nor reply me.