The subject of the question, Postal Bank’s MasterCard and UnionPay cards have the most exclusive limit. Almost all credit cards in the same group have the same limit. The one with the higher limit (if If the amounts are different), there are only a few exceptions.

The so-called limit sharing means that credit cards of the same bank and the same brand enjoy the same limit (usually the maximum limit of one of the cards).

Although several cards have their own individual card limits, the total overdraft in use cannot exceed the exclusive limit of this brand of credit card.

Almost all credit cards from banks have unlimited credit limits, with only a few exceptions.

For example, the RT-Mart co-branded card of Ping An Bank is independent from other credit cards of Ping An Bank, but the limit is still shared among other credit cards of Ping An Bank.