There is no limit. As long as it is a regular 4s shop or auto shop, the credit card consumption is not limited by the credit limit of its own debit card, and it can be used normally. However, when buying a car in full, the balance in one savings card is not enough to pay for the car purchase, and when the balance of other savings cards is insufficient, you can also swipe the first card and then swipe the second card.

Is there a handling fee for swiping the card?

There is no need to pay extra credit card fees to commercial banks or special merchants. The amount that users need to pay is the price of the goods they buy. No matter whether you hold a card locally or in a different place, there is no handling fee for using UnionPay cards to consume POS cards in one bank or across banks.