The price difference caused forced liquidation, making me suffer $8600 losses.

I traded on WTI, but there was a price difference between the market and platform, with one 15.461 and the other 15.418, on which may well be manipulated. After my account became liquidated, the price bounced back to 16.68. If I closed the position at the normal, I couldn’t have suffered losses. Now the price is above $20. The customer service told that the market price was not real. Having this on exposure, I hope someone deal with my problem.