on 05-01-2019 14:36
@john25 follow this guide to download your old bills with details of calls made https://community.o2.co.uk/t5/How-to-Guides/How-do-I-get-to-the-Download-Bill-page/ba-p/1014096
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone7 (EE)
05-01-2019 14:38 - edited 05-01-2019 14:39
You can only see calls made (not received) from this guide. It goes back 2 years
Other than that... checking your phone is the only other way...
on 18-01-2019 16:08