There are no upfront fees on simo contracts but if you want to upgrade to a device plan you will have to pay the upfront cost relating to the phone and tariff you choose.
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)