Trading masters, have you ever encountered a situation where you have u in your contract account but cannot transfer it? Why? The customer service said it was a trial voucher, an August trial voucher, but I recharged from 0u to 200u two days ago, and now I can only transfer 180u out. The other 20 can be seen but cannot be transferred. I can only put it in to open an order. I use this 20 to open an order separately, and the profit from the order cannot be transferred out.