on 01-06-2019 23:28
You can see all the calls and texts from your phone for the last 2 years by following this guide 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), iPhone 8+ (EE)
on 01-06-2019 23:29
The only way to get that would be if your phone still has them.
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here