on 10-12-2019 20:40
on 10-12-2019 20:45
All explained here
https://www.o2.co.uk/help/phones-sims-and-devices/how-to-keep-your-mobile-number
Best option is to call customer service
on 10-12-2019 20:45
All explained here
https://www.o2.co.uk/help/phones-sims-and-devices/how-to-keep-your-mobile-number
Best option is to call customer service
on 16-12-2019 11:47