The platform's customer service staff always gives irrelevant answers! I asked, "How is the margin ratio calculated for EUR/USD?" and they explained "How to open and close a position." I then asked about the margin, and they said, "The ratio varies depending on the account type," but they still didn't explain the specific calculation method. After 20 minutes of back-and-forth, I still couldn't resolve the issue. It's worse than a robot.