trying to change from Tesco to o2 and keep my number. When I ask for a code o2 say they have sent il

[Wayneaye]

Do I have to leave my Tesco sim in my phone for the change, as O2 say they are sending my code to their new sim's number.

[jonsie · Accepted solution]

All the info in the community guide here

Guide: Migration & porting into O2