Top-up your Three phone online with a basic top-up with low rates that don't expire. Or convert your credit into a great value Pay As You Go add-on which offers a bundle of minutes, texts and data that last for 30 or 90 days. Top-up can be done online with a debit or credit card, or alternatively using a voucher.
3p a min
2p a text
1p a MB
|Top Up >
|Top Up >
(lasts for 90 days)
All minutes, text and data add-ons can be used in 71 destinations at no extra cost with Go Roam. However, when roaming abroad there is a fair usage policy of 15GB data per month in Go Roam Europe destinations and 12GB per month in Go Roam around the world destinations.
For even better value have you considered a Pay Monthly SIM plan, which are available on 1-month, 12-month or 12-month plans.
Top-up your mobile broadband dongle, MiFi device or tablet online with a basic top-up and pay for the data you use. Or choose a great value PAYG add-on with a bundle of data that lasts for 30 days. Top-up online can be done with a debit or credit card, or using a voucher.
|Top Up >
|500MB data bundle
|1GB data bundle
|3GB data bundle
|7GB data bundle
When you buy an mobile broadband add-on you also benefit from Go Roam around the world enabling your data to be used in 71 countries.
Yes, simply call 444 from your Three phone and follow the instructions.
Yes, you can buy a voucher from a high-street store and then activate it by dialing 444 on your Three phone.
Yes, there are a number of alternatives for topping-up on Three.
There are a number of ways to find your mobile number
Add-ons are an enhanced version of Pay As You Go designed to offer better value for your money. Instead of simply using your credit to pay for usage you get a bundle of minutes, texts and data to use within 30 days.
If you're buying an add-on you'll first have to top-up and will then be able to convert your credit into an add-on.
In addition to the add-ons listed above there are also a few extra add-ons available:
Yes. Add-ons can be combined where applicable. For example, you might have both a Three-to-Three add-on (giving you 3000 Three-to-Three minutes) and an All In One 10 add-on (giving you 1GB of data, 3000 minutes and 3000 texts).
In this case your Three-to-Three minutes would be used when calling someone else on Three, while your other allowances would be used the rest of the time.
Yes, if you have both an add-on and some ordinary credit the allowances from the add-on will be used first.
Add-ons don’t cover you making an international call, using your allowances abroad outside of Go Roam locations, using a text message shortcode service or calling a special number.
If you have a second add-on queued then this will be activated automatically. If not, Three will send you a text when you’ve used up 80% of your add-on and another when you’ve used it up completely, so you’ll know you need to buy another or top up.
Yes, although Three recommends doing so before you leave if possible. If you do need to top-up when abroad you’ll need to use a debit or credit card, as you won’t be able to buy a voucher. And remember, add-ons only work in Go Roam locations.
Trouble topping up? If you’re using a credit or debit card make sure it’s registered at the same address as you’re registered at Three with, that it hasn’t expired and that you’ve entered the security code correctly. Also, be sure you’ve got at least £10 in your account.
Issues with vouchers? Double check you’ve entered the correct voucher number and if all else fails turn your device off and on again.
No credit in your account? If you’ve topped up but can’t see the credit, wait an hour just in case there’s a delay. Or try turning your device off and on again.
Still no luck? If none of the above has helped you can always give Three a call on 333 from your Three phone for assistance.
The information contained on this website has been written to assist our readers. We do not represent Three or speak on its behalf and are entirely independent of Three.