@TY25
If you have a big bundle your top up is taken for allowances.
To make any chargeable calls you need to top up additionally to add credit.
https://www.o2.co.uk/help/pay-as-you-go/big-bundles
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)