Go directly to UnionPay deposit and withdrawal machine to withdraw money. In this case, you can only withdraw one of your credit lines. If your credit line is 50,000, you can only withdraw 25,000 at most. Moreover, the interest rate is high. My Bank of Communications is 0.5% a day. That is to say, you get 1000 yuan a month, 15 yuan. He counts by the day, starting from the day you withdraw money.