I can't get reached on my old number after swapping sim (from giffgaff to o2)

[Lana_E]

I swapped my sim and have received a new o2 sim last week

And today my number hasn't been changed to my old number yet

But I'm getting SMS saying I have voicemail on my old number

I can't even make phonecalls from this new number although I have activated it via sms

And now I can't get verification code on my old number in some two-factor authentication services

Help!

[O2James · Accepted solution]

Can you try putting your old SIM back into the phone and see if that is still connected

[jonsie]

https://community.o2.co.uk/t5/Other-Products-and-Services/Coronavirus-Covid-19-Community-Help-and-Su...

[Martin-O2]

Hey @Lana_E any update on your porting issue? 

[Lana_E]

Hey yes, the first solution worked

I re-inserted my old sim and noticed it doesn't work anymore and when I inserted my new one, it's working (I can make calls and use cellular data).

Thanks!

[Martin-O2]

Fantastic! Thanks for letting us know @Lana_E.