You can cancel an Add-on on My3 or on the Three app. If you have any trouble, get in touch.
Get more allowance
Keep talking, tweeting, connecting.
Running low on data again?
See how you could get more allowance without extending your plan's length on My3 or on our app.
Pay Monthly Data Add-ons
One Day Boost (Unlimited Data)
Get Unlimited data for the rest of the day. Expires midnight GMT+1.
£9
Unlimited Monthly Boost
Get Unlimited data every month. Renews automatically.
£20
a month
5GB Monthly Boost
Get an extra 5GB of a data every month. Renews automatically.
£10
a month
10GB Monthly Boost
Get an extra 10GB of a data every month. Renews automatically.
£13
a month
One Month Boost (Unlimited Data)
Get Unlimited data until the end of the month. Expires when your bill renews.
£25
Need to call abroad from the UK?
Pay Monthly Call Abroad Add-ons
For a full list of Call Abroad destinations, please see below:
Pay Monthly
Call Abroad - 100 Minutes
For £7 a month get 100 minutes a month to call standard landline and mobile numbers. This recurrs monthly and includes 55 destinations.
Pay Monthly
Call Abroad - Unlimited
For £12 a month get unlimited minutes a month to call standard landline and mobile numbers. This recurrs monthly and includes 55 destinations.
Get a bigger Data Pack, and save
Out of data before the end of the month? Next time, a bigger Data Pack could give you better value.
Boost your data with an Add-on
Unlimited Data Boost - 14 day
Get Unlimited data for 14 days.
£20
Unlimited Data Boost - 1 day
Get Unlimited data for a day.
£5
10GB Data Boost
Get 10GB extra data for a month.
£12
6GB Data Boost
Get 6GB extra data for a month.
£8
3GB Data Boost
Get 3GB extra data for a month.
£5
Need to call abroad from the UK?
Pay As You Go Call Abroad Add-ons
Our Add-ons take the stress out of calling abroad. Simply choose how many minutes you need.
For a full list of Call Abroad destinations, please see below:
Pay As You Go
Call Abroad - 200 Minutes
For £5 get 200 minutes to call standard landline and mobile numbers. It lasts for 1 calendar month and includes 39 countries.
Frequently asked questions
If you're on Pay As You Go, you need to have enough credit to buy an Add-on. If you're a Pay Monthly customer, the cost of your Add-on will be taken from your monthly bill.
Pay Monthly customers can purchase multiple Add-ons, but each one can only be active once per billing cycle. For example, if you buy a data Add-on during one billing cycle, you won't be able to buy the same data Add-on again during the same billing period. However, you can buy multiple different Add-ons per billing cycle.
You can buy an Add-on in the Three app or on My3. No data? No problem. The Three app works even when you’ve run out.
Important: Data Add-ons aren’t charged pro-rata. This means that you’ll be charged the full amount – and get the full data allowance – no matter when you buy one.
For example:
You have 1 day left of your billing cycle and buy a Monthly Boost 6GB Add-on for £10. You’ll be charged the full £10 and get the full 6GB of data to use until your new billing cycle starts.
How long an Add-on lasts depends on which you’ve chosen and what plan you’re on.
For Pay Monthly customers, all Add-ons except our Short-Term Boost and One Day Boost renew automatically until cancelled.
For Pay As You Go customers, Add-ons typically last for one month from the date of purchase. You can check the app for more details.
You can check which Add-ons you have, see which ones are available to you, and buy Add-ons on our app.
You also log in to My3 and select Allowance then Add-ons. The price you'll see for short-term Add-ons is a one-off cost until the end of the billing month. Long-term Add-ons have a monthly recurring cost.
No. So long as you have a data allowance, you can use your Personal Hotspot to share data with other devices. Learn more about Personal Hotspots.