Severe slippage of $10

The slippage reached $10 on August 9. I set stop loss at 1748 but the platform changed it to 1738. The customer service said it was normal and the slippage usually stood at $0.2-3. They could not search the data on June 29.

The following is the original recommendation

星际外汇，滑点严重，近10美金，平常也有滑点

8月9日滑点近10美金，止损点1748，实际损1738，找客服无人解决说一切正常，平常时间段也经常滑点近0.2-3美金，核对6月29日的交易后台数据客服说他们没有数据，你这是什么平台？看图3，4，我止损1742，平台当时价位最高1742.38，怎么1743.27止损？点差大，滑点大，数据丢失，连自己的数据都找不到