Subject: The credit lines of MasterCard and UnionPay card of Postal Savings Bank are shared, and almost all peer credit cards are shared. There are only a few exceptions if the shared credit line is high (if the credit line is different).

The so-called quota sharing means that the credit cards of the same bank and brand share the same quota (generally the maximum quota of one card).

Although several cards have their own single card limit, the total overdraft in use cannot exceed the sharing limit of the brand credit card.

Almost all interbank credit cards are line sharing, with few exceptions.

For example, Ping An Bank's RT Mart co-branded card is independent of other Ping An Bank credit cards, but the credit lines of other Ping An Bank credit cards are still shared.