So having gone through the process today I can confirm how it works.
You get a card from O2 with your qualifying purchase or upgrade. The card contains a scratch off panel which reveals a code.
You download the popcorn app from here after the registration process is completed
https://www.popcornpass.co.uk/redeem-code/o2All tickets must be purchased through the app and are then stored on your phone to show upon arrival at your chosen cinema.
Savings of 40% on ticket prices so well worth having Smiley Happy
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion.
This is not Customer Service so we are unable to help with account specific issues.Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)