Payment code scanning times will not repeat the deduction.
Scan code order a table corresponding to a bill, when a person pays the bill then emptied, if the second person scan code if not order then it will not produce a new bill and can not pay again. Normally, the store scan code ordering also takes into account such a situation, so there will be no second payment after payment. If there is a breach, you can find the store to refund. Two-dimensional code payment is a new generation of wireless payment scheme based on the account system. Under the payment scheme, merchants can compile transaction information such as account numbers and commodity prices into a two-dimensional code and print it on various newspapers, magazines, advertisements, books and other carriers.
Yes, multiple scans will result in multiple payments