FBS Review
fbs.com

FBS offers leveraged trading products, including forex and precious-metals instruments.
Available case material describes a disputed XAUUSD execution after a stop-loss amendment was reported as accepted by the trading server.
Review of FBS
A participant reported opening a 0.01-lot XAUUSD trade and setting a stop loss at 4465.91. They said the order was later executed at 4412.86, despite not seeing a corresponding move in the market data they reviewed.
The participant requested order correction and a refund, citing the difference between the reported stop-loss level and the execution price.
Conclusion
This is a reported execution dispute. Traders should retain platform logs, compare available price feeds, and understand the broker entity's order-execution and complaint procedures.