pac code

[Buggyswife]

i have given o2 my pac code from tesco mobile when do i insert the 02 sim card

[pgn]

When your current SIM switches to "No Service", @Buggyswife - then you can remove the Tesco SIM and put in your O2 SIM and follow the prompts. Your old SIM can be destroyed once you have all normal functions: calls, texts, data, etc, working on the new O2 SIM, using your original phone number. As this is Sunday, it may be Tuesday before this happens fully, as migrations do not happen over the weekend. Good luck. 

[Enlli]

Nothing happens Saturday and Sunday on porting so look to Monday or Tuesday

If it was me I would wait for the Tesco SIM to go dead before swapping