Urgent! I paid a deposit at the Thai hotel! Now check the bill and find that the deposit has been deducted directly.

Do you still have the receipt for the pos machine? Usually, pre-authorization is used. If this is a receipt, it will be fine. Generally, the refund amount will be automatically cancelled after one month. If the hotel makes a mistake and it becomes a sale, you need to contact the hotel.

Really can't. You can call the customer service phone of the bank to make an inquiry.