First of all, let me correct you. It is telling ETC card, not CET. There are two types of CCB ETC cards. In the past, you need to deposit money into the account first, and then it will be automatically deducted every time you go out of the expressway. Now CCB ETC card The card is directly connected to the credit card account. Each time a high-speed fee is generated, it will be debited from the credit card account first, and then the credit card account will be billed and refunded according to the bill.