Forced liquidation because of maliciious slippage

On the non-agricultural night of May 7, 2021, the pending order was 0.8 lot buystop, the pending order price was 1821, and the take profit price was 1826. As a result, the transaction price was 1823.15, and the account was liquidated when the price returned to 1820.97. If there is no slippage, the transaction at 1821 will not be liquidated at 1820.97, and the profit can be taken smoothly at 1826. The platform replied that it was caused by insufficient liquidity and no compensation would be given. If there is insufficient liquidity for even 0.8 lots of orders, what is the significance of such a platform? The reply from the platform can't satisfy me at all. This is a pending order, not a market transaction! ! ! If this is the case, what is the significance of the pending order? ? ?