Karanbir Singh - Thinkability

Hi Karanbir,
My name is Dan Keeling,
I am a manager for Carphone Warehouse and have been for over 6 years.
I have been working for CPW for nearly 9 years in total.
I can remember before we were able to transfer the customer's number across to a different network (pre number-portability)
So I feel pretty confident to be able to help you in your plight.
There is another technique used in order to Transfer your number across from one service provider to another.(in this case the same network)
This is called simply 'migration' as apposed to the more popular portability.
This technique happens when there are service providers in between the network and customer ie not (Tmobile,Orange,three)
So this method lends itself well to vodafone and O2.
When you arrive in store ask the consultant to process the sale as a new connection although you will need to provide a PAC number as you would if moving to another network.(this might take a few days)
You will finish off with a new handset also a new sim card (although not needed so keep as spare)
The process from beginning to end might take approx 10 days.
Hope this helps.
Dan