The best way to not lose your code is to take a screen grab of your ticket code on your phone.

QR codes are like barcodes - a graphic representation of a number or alphanumeric string of numbers and letters.
Try to read the code, then enter the code manually (without the lowercase letter at the end) at

If you have lost your code or get an error message when you try to scan you can open a support ticket to request a new code.