Sim not working after upgrade

[Anonymous]

Hi, I upgraded my phone contract at carphone warehouse on Wednesday, and was told that everything should be up and running within 24 hours. But here i am on Friday and still no service.

I've been not O2 customer service who just told me to keep turning the phone on and off, or speak to carphone warehouse. This morning I went into carphone warehouse who have told me there is nothing they can do and to pop into an O2 store, which I dully did just to be told yeah you guessed it - speak to carphone warehouse.

Please help, I'm being fobbed off by all parties involved and now without a phone, as my other one was traded in

[Anonymous]

Have you sim swapped if your using a new SIM card.

http://swapmysim.o2.co.uk

Also check your masts here to ensure all is ok with them http://status.o2.co.uk

[Anonymous]

Hi mate, yes, I've been through that link previously, however I have no way of receiving SMS code

[Anonymous]

I assume then your phone takes a different sized SIM card to the original phone ?

Can you pop your original sim in a friends phone to get the code ,or ask an O2 employee to pop it in one of the stores phones and ask O2 to sim swap for you in store.

[Anonymous]

Ok, thank you, will have to pop into O2 store tomorrow

[Anonymous]

Ok.

Until the simswap has been actioned to move your tariff and mobile number from the old SIM card to the new one you won't get service.

[MI5]

I guess CPW must have given you a blank sim card and not activated the swap. Where is your old sim card now?