We updated the GUI to show a keypad of a vending machine with 24 slots with 6 products per row, therefore available selections are: from 11 to 16, from 21 to 26, from 31 to 6 and from 41 to 46.
To pay you can use a TEST dummy visa card: 4263970000005262, exp. date: 12/20 and CV: 123.
If you want receive electronic receipts or just track your orders, enter your email from the menu in upper left corner.
Enjoy the demo !!!