Vodafone Number

I thought about it for a while and now I have decided that I would go through the saga of recovering my mobile number back. It would require calling an old friend whom I have not talked to for like months. It would require interaction with the zombies they call the policemen. And it would involve visiting a Hutch center which I am not sure where is located in my city.

I would be narrating the experiences here. I am however not sure what I need to do to get that cell phone disabled. I do have its IMEI number. Anyone has any clues?