1) Check you’re eligible to switch from BT Mobile
If you’re out of contract you can switch from BT Mobile when you like and it won’t cost you anything to leave.
If you’re not sure if you’re still under contract, you can find out in a number of ways.
One option is to contact BT Mobile customer support on 150 from your mobile phone. Or by calling 0800 800 150 from any other phone (standard network rates apply).
Opening hours are 8am-8pm Monday-Friday and 9am-6pm Saturday and Sunday.
Alternatively, you can find your contract end date by opening the BT Mobile app on your phone. Or by logging in to your BT Mobile account.
2) Contact BT Mobile to tell them you want to leave and get a PAC Code
Now’s the time to contact BT Mobile to tell them you’d like to leave. You'll find contact numbers and opening hours for customer support in step 1.
While you’re on the phone to customer support, ask them for your PAC Code too. This is a short sequence of numbers and letters that’s vitally important for transferring your current phone number to the network you’re joining.
It’s a legal requirement that networks provide you with your PAC Code within two hours of your request. When you’ve got it, it’s clever to make a note of it. Just in case.
What’s most important to note, though, is that PAC Codes expire after 30 days. So if you haven’t used yours within this timeframe, you’ll need to get in touch with BT Mobile again to request a new one.
3) Find and buy a deal from giffgaff
Right, then. Confirmed you’re out of contract and ready to switch? Good news. Your next job is to choose a deal from giffgaff and sign up for it via uSwitch.
Vodafone will then run some credit checks. After you’re approved, you’ll receive your phone in the post.
4) 4 Contact giffgaff to give them your PAC Code
You can do this via giffgaff’s number transfer form.
5) Insert your giffgaff SIM card
Take the phone from its box and insert your giffgaff SIM. giffgaff advises that there will be some loss of service during the transfer process.
To check whether the giffgaff SIM is active and the transfer has been completed, it’s a good idea to turn the phone on and off during the day.
6) Wait for your number to be transferred to giffgaff
Typically, your number transfer will be completed at some point during the next working day. If a weekend gets in the way, it may take a bit longer.