1) Check you’re eligible to switch from Vodafone
If you’re out of contract, you can switch your contract. To check your contract status, you can either:
Open up the Vodafone app on your phone. Then click on the menu icon on the top right of the screen. Next, click on ‘Upgrade or change plan’ in the second menu that appears.
Now, click on ‘Change plan’ and you’ll see your contract termination date under the heading labelled ‘Agreement length’.
If you don’t have the Vodafone app, you can check your contract end date by logging into your account on the Vodafone site.
Prefer to call? Get in touch with Vodafone's customer support team on 191 on your Vodafone phone. Or on 03333 040 191 from any other phone (standard network charges apply).
Opening hours are 8am-9pm every day.
2) Contact Vodafone to cancel your contract
Now your phone or SIM card is on its way, you need to contact Vodafone to tell them you want to leave. When you tell them, they’ll give you a concrete contract end date.
While you’re on the phone to Vodafone, remember to ask for your PAC Code. It’s a short, alphanumeric code that you’ll use to transfer your phone number to the network that you’re going to join.
Vodafone is legally obliged to supply your PAC Code within two hours of you requesting it. When you’ve got your code, it’s smart to make a note of it. Just in case.
But the most important thing to note is that your PAC Code expires after 30 days. So if you haven’t used it in this timeframe, you’ll have to request a new one from Vodafone.
3) Find and buy a new deal from O2
Your next task is to choose and sign up for a new deal contract from O2. Once you’ve passed O2's credit checks, you’ll receive your phone or SIM card in the post.
4) Contact O2 to give them your PAC code
Now you’ll just to ring O2 to give them your PAC. You can get in touch with O2's customer support team on 034 4809 0202 from a landline (standard network rates apply).
5) Insert your new SIM card from O2
If you got a new phone, use your pin-key to unlock the handset's SIM tray. Then insert your O2 SIM.
If you went for a SIM-only deal, you can just put the O2 SIM in your existing phone.
While your number is being transferred, you'll be supplied with a temporary number to use. So you can still make and take calls and do whatever you'd normally do on your phone.
6) Wait for your number to be transferred from O2
The transfer should be complete the next working day. But this varies depending on the network you're joining.
The transfer could also take a little bit longer if a weekend or Bank Holiday gets in the way.