Raising a card is to use another bank's credit card to fill the vacancy when the credit card overdraft is about to exceed the bottom line. This is to raise a card with a card.

To put it simply, it is to use card A to spend money, and then use card B to pay back the money owed by card A later. When the B card pays back the money, use the credit line of the C card to pay back the money of the B card. When the C card should be returned, use the A card to return it.

Extended data:

The way to raise a card is that the cardholder must first apply for two or more credit cards.

Then the repayment dates of several credit cards are staggered. The first credit card is used for daily consumption, the second credit card is used for overdraft before the repayment period, and the debt of the first credit card is paid, and so on, and multiple credit cards are overdrawn in turn.