on 25-06-2020 13:20
on 25-06-2020 13:25
Why would you want a proof of number transfer? Are you porting in to O2? If so then info here
https://www.o2.co.uk/help/phones-sims-and-devices/how-to-keep-your-mobile-number
Or you could contact them. All numbers in this guide Guide: Coronavirus Community Help and Support
0800 587 4005 is the best one to call.
Veritas Numquam Perit
on 25-06-2020 13:28