How to make the electronic signature displayed by the card reader exceed the budget?
After the card reader shows that the electronic signature exceeds the budget, the processing method is to settle the account. The reason why the electronic signature displayed by the card reader exceeds the budget is that it has reached the upper limit of the amount set by the card reader when it leaves the factory. At this time, the excess balance of the credit card reader must be retained through settlement, and the credit card reader can continue to consume and collect bills after settlement.