Credit cards can be overdrawn, which is the characteristic of credit cards. Credit card is a kind of card that is used first and then returned. In addition, the amount of things that the landlord can buy with a credit card needs to be determined according to the credit card amount obtained by the landlord. If the credit card limit of the landlord is high, the landlord can buy a lot of things, but these limits need to be returned by the landlord next month. If you don't repay on time, the landlord is likely to enter the bank blacklist. This is the information I know.