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 SIM-only deal from BT Mobile
Next up, you’ll need to select a deal from BT Mobile and sign up for it through uSwitch.
BT Mobile will run some credit checks. After which point, your phone will be sent to you in the post.
4) Contact BT Mobile to give them your PAC Code
OK, it’s time to get in touch with BT and give them your PAC Code. Once you’ve done that the process of transferring your number to BT Mobile is in motion.
Get in touch with BT by calling 0800 800 150 (standard network rates apply). Opening hours are 8am-8pm Monday-Friday and 9am-6pm Saturday and Sunday.
5) Insert your BT Mobile SIM
Got a new phone from BT Mobile? Use the pin in the box to open the SIM tray and insert your new BT Mobile SIM.
If you opted for a SIM only deal, you'll just need to put the BT Mobile SIM in your existing phone.
The number transfer doesn’t happen instantly. But while it’s taking place, you’ll have a temporary number that you can use.
6) Wait for your number to be transferred to BT Mobile
BT Mobile typically completes number transfers the next day. However, it may take a bit longer, depending on how early in the day you made your request.
If there’s a weekend or Bank Holiday in the way, this may also hold up your transfer a little bit.