Why does the post spend a penny on a bank card and there is no text message?

Because the information service is automatically closed.

There are two possibilities for postal SMS to disappear: first, the bank has no money, so it can't deduct the SMS fee, interrupt the SMS service, and there is no free service. In another case, there is still no SMS service for bank card transactions with money in the card. It is possible that the information service will be automatically closed, so just bring your ID card and reopen it at the bank self-service machine or counter.

Postal debit card refers to the bank card issued by the issuing bank to the cardholder. There is no credit limit, and the cardholder deposits first before using it. It is a credit tool, which has the functions of transfer settlement, cash deposit and withdrawal, shopping and consumption.