this way of using the card will not be withdrawn by the bank. Some people will think that as long as the card is still available, anyway, the bank likes to encourage the use of the card, so it will all be swiped out in one store, recycled and then returned. As long as it is returned on time, it means that it is used well. Actually, it's not. When reviewing the amount, CCB will also look at where it is used and whether it is a normal personal consumption behavior. People who set empty cards for a long time must be very risky. If the amount is raised, it will mean greater risk, so such people will not be raised.