Just a short message said that my CCB card was self-used 18 yuan, and I never used it at all. What happened?

Just a short message said that my CCB card was self-used 18 yuan, and I never used it at all. The reason is that you may have signed agreements with banks and other units to collect fees in the past, such as signing agreements with power companies to collect electricity fees, signing agreements with public utilities to collect water, gas and garbage fees, or signing agreements with communication companies to collect telephone and internet fees. It is possible to deduct money without your recent operation.

Specific circumstances:

Self-service consumption transaction refers to the transaction that the cardholder operates and confirms the initiation by himself through the bank card self-service acceptance terminal deployed at home, convenience payment service points, office of the unit, bank outlets and other places, and completes the payment of public utility fees or consumption bills (except credit card bills).

Scope of application: It is applicable to the consumer business completed by the cardholder by swiping (inserting) his own card through the self-service acceptance terminal (hereinafter referred to as "self-service card consumption business").

It is suitable for member institutions that join the UnionPay network, as well as magnetic stripe cards and ic cards (including IC card lending applications and electronic cash) that meet the unified standards.

Suggestion: I suggest going to the bank to check the records and see what the expenditure name is. If not, you can contact the person in charge of the bank.