1) Check you’re eligible to switch from giffgaff
Assuming you’re out of contract, it won’t cost you anything to leave giffgaff. If you’re not sure whether you’re still under contract or want to find out your contract end date, you’ve got a few options.
The first is to log in to your account at giffgaff’s site.
The second is to log in to the giffgaff app on your phone.
As you’ll almost certainly know, giffgaff doesn’t operate a telephone customer support service. So you won’t be able to get in touch over the phone.
2) Contact giffgaff to cancel your contract and get a PAC Code
With your phone wending its way to you, you’ll now need to contact giffgaff to tell them you’d like to leave and get a PAC Code. A PAC is a short, alphanumeric code, which is critical for transferring your number to the network you’re joining.
You can get your PAC code from giffgaff by logging into your account online and requesting one.
Or you can get one by texting 43431 from your giffgaff phone.
All networks are obliged to supply your PAC within two hours of your request. Once you’ve got it, you may want to make a note of it. Just in case.
PAC Codes are valid for 30 days only. If you haven’t used yours within this timeframe, you’ll need to submit a request to giffgaff for a new one.
3) Find and buy a phone from Vodafone
So you’re out of contract and ready to switch. That’s great. Your next step is to choose a deal from Vodafone and sign up for it.
Once you’ve passed Vodafone’s credit checks, you’ll receive your phone or SIM in the post.
4) Contact Vodafone and give them your PAC code
Okay, we’re well on our way now. Next, you’ll have to ring Vodafone and tell them your PAC Code.
To get in touch, call Vodafone’s customer support team on 03333 040 191 (standard network rates apply).
5) Insert your new Vodafone SIM card
If you got a new phone, it's time to take your pin-key and unlock the handset's SIM tray. Then insert your Vodafone SIM.
If you opted for a SIM-only deal, you can just put the Vodafone SIM card in your existing phone.
The number transfer won’t take place instantly, but while it’s underway you’ll be given a temporary number to use.
6) Wait for your number to be transferred to Vodafone
Experience tells us that your number transfer should be complete the next working day.
But this depends on the network you’re joining and there are some circumstances under which it may take a bit longer. For instance, if you make your call on a working day or a weekend.