By discount code

Gulsy Business Application. There are three ways of verifying the code of the user in the Gulsy Business application: by scanning the QR code, by checking the Gulsy ID of the customer, by checking the discount code.
Discount codes are given for a limited time. If the user arrives with a QR code, then it is necessary to first hit the “QR” button in the home page of the application.
On the screen that pops up, enter the discount code and press the “Check Discount” button. The information about the user and validity of their discount will be displayed.