If the customer didn't pay for the meal, it was found at that time. You can mention it euphemistically, don't say it directly, so as not to sweep the customer's face. In addition, after the customer pays, check whether the account has arrived. If you are an old customer, you can remember the time and amount of this consumption, and communicate with the customer when the customer comes to spend again next time, making it clear that this payment is unsuccessful and ordinary old customers will not rely on it.

If it is a new customer, you may not be able to find the other party. If you spend a lot of money, you can ask the police to intervene. Stores should install surveillance. In addition, it is suggested to write a note to explain to the customer that you should show it to the store after paying the money, or see for yourself whether the customer has paid successfully and determine whether the transaction is completed.

Form a background:

The rise of QR code payment method in China is not accidental, and its background is mainly related to the rapid development of IT technology and the rapid promotion of e-commerce in China. The maturity of IT technology promotes the birth of mobile terminals such as smart phones and tablet computers, and makes people's mobile life more colorful.

At the same time, domestic e-commerce is also closely related to "mobile", especially the development of O2O. With a large number of mobile devices and a large number of mobile consumption, the cost of payment is particularly critical. Therefore, the QR code payment solution came into being.

Refer to the above content: Baidu Encyclopedia-QR code payment