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Wait 1-2 working days for your sim
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Best network for coverage
Stay connected with our award winning network.
We’re pleased to announce that we won Best Network Coverage in the Uswitch Mobile & Broadband Awards 2020. It’s the third year in a row that we’ve won the award. And we couldn’t be prouder, as we’re working hard to keep our customers connected.
Get invite-only tickets, perks and experiences.
Priority is your invite to make the moments you live for. Sipping coffees on the house. Strolling past queues at sold-out venues. Getting first eyes on fashion collections. Or getting first dibs on gig tickets. Head to Priority now – today’s invites are ready when you are.
Manage your account 24/7 with My O2.
Top up, check your data usage and more, plus add Bolt Ons when you need them - wherever you are.
We've also got a free app that highlights who you call and text the most by syncing with your contacts.
- How do Big Bundles work?
Just top up the right amount for your chosen bundle each month to get your allowance. You'll be able to rollover your data at the end of the month.
Big Bundles last for a month and renew automatically on the same day each month, if you've got enough credit. If you don't, you'll be charged at our Big Bundles standard rates until all your credit's gone. You'll get your bundle allowance back when you top up enough credit again. Big Bundles terms apply.
- How do UK & International Bundles work?
Just choose your bundle and top up the right amount to get your allowance. It’ll last for a month and renew automatically if you've topped up enough credit.
You’ll get discounted rates if you’ve used up your allowance or if you’re calling a destination that’s not included. And you can roll over your unused data every month. Terms apply.
- There is a minimum top up of £10 on the £5 Big Bundle, how does this work?
A £10 minimum top up is required for all Bundles, including on the £5 Big Bundles. When you've topped up, we'll automatically swap your credit for your Big Bundle, which will last for one month.
Any out of bundle charges incurred will be deducted from your credit so that means you'll need to top up £10 to activate your £5 Big Bundle again if you have used any of your credit before your Big Bundle renewal date.
If you do not incur any out of bundle charges, you will still have £5 available credit and your £5 Big Bundle will automatically renew in the following month.
- How do I claim £10 free credit?
You can claim £10 free credit when you buy any Big Bundle. To claim your credit, text FREE10 to 21500 within 28 days of ordering your sim.
- Will the sim fit my phone?
Our sims fit all devices.
- What happens if I don’t use my phone for long periods?
If you don't carry out a chargeable activity at least once in any six month period your phone will be disconnected and you'll lose any credit on your account. If you want to be reconnected you'll be given a new number.
- Can I keep my number?
Yes. If you’re moving from another network, before you can transfer, we’ll need your PAC. Once you’ve ordered and received your temporary O2 number, fill in the keep my number form. Find out more about keeping your number.
If you’re moving from O2 Pay Monthly to Pay As You Go, Get in touch with our Pay Monthly customer service team. We'll do the rest. If you're on O2 Refresh you can only move to Pay As You Go once your Device Plan is paid. If you're not on O2 Refresh but still in your contract minimum term, you may need to pay a termination charge.
- How can I top up?
You can top up online, or you can:
- Call 4444 from your mobile
- Use an E-Top Up card buy a voucher anywhere you see the green top-up logo
- Use the My O2 app
- Can I change tariff?
Yes. Sign in to My O2 or call 2202 to switch to a new tariff - you can do this once a month if you want to.
- I ordered a sim but it hasn't arrived, what can I do?
If you ordered your free sim by 12pm, you'll get it the next working day (subject to location and Royal Mail delays). However please allow three working days for your sim to arrive. If it still hasn't arrived, you can chat to one of our agents
- Where can I view the Terms & Conditions for Big Bundles?
Here you can find our condensed terms for Big Bundles, but for more detail and full terms please see here.
Pay As You Go Only. Your Big Bundle tariff value, is the minimum monthly credit balance / top up required to activate and renew a bundle of Europe Zone data allowance and allowances of minutes and calls in the UK which you can also use whilst roaming in our Europe Zone, subject to Fair Usage policy. Data rollover is available on £10, £15, £20 and £30 data Big Bundles only. On your monthly renewal date you can carry forward up to 100% of your standard monthly data allowance ("Roll Over Data") into the following month's data bundle, subject to your total data bundle (Roll Over Data + standard monthly allowance) not exceeding 200% of your standard monthly data allowance at any one time. Any data that cannot be rolled over will expire. Roll Over Data will expire immediately if you fail to renew your Big Bundle on time or if you change tariffs. Limits, additional costs and further information can he found here (i) Pay As You Go Roam Like At Home landing page and (ii) Europe Zone Web Daily terms and conditions. For Pay As You Go Tariff terms see www.o2.co.uk/paygterms.
- How does data rollover work?
If you are on a data Big Bundle tariff that includes our data rollover then if your data Big Bundle automatically renews, any data you don't use one month will roll over to your next months data Big Bundle, subject to a cap which is double your usual data allowance. This will be available for you to use during the next month. Unused data allowances will only roll over from one bundle to the next if your data Big Bundle renews on the same day your previous data Big Bundle expires. If you change the type of Data Big Bundle you are opted into or your data Big Bundle does not automatically renew, for example, if you do not have enough credit, your unused allowances will not roll over and will expire.