Accessing 12 months of call logs

[callsplease]

I want to access my call logs for the past 12 months, my phone only collects from the past 3 months. however presumably my carrier has this detail. how can i get access?

[PeteG]

Hello there. 

Welcome to the Three Community. 

The calls that you make are saved within your phone bills each month. You can access these through My3 by downloading the PDFs. 

We do not keep a record of any inbound calls. 

Pete.