How to scan a QR code
1. Touch Settings.
2. Scroll to and touch Control Centre.
3. Touch + next to Code Scanner.
4. Swipe up from the bottom of the screen to return to the Home screen.
5. Swipe down from the top right of the screen to access the Control Centre.
6. Touch the Code Scanner icon.
7. Position your iPhone so that the QR code appears on the screen.
The QR code reader is also accessible from the Camera app on the phone.