for example, if the credit line is 2,, the available credit line will be 2, after the repayment is due, and there will be a refund of 3 yuan, so the available credit line in the credit card will be 2,3. But you can't withdraw cash. As long as it is the money in the credit card, whether it is outside the credit limit or not, as long as you withdraw cash, you will have to charge a handling fee and interest.