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.
- Pay Monthly
- Pay As You Go
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.
£8
Monthly Boost Unlimited Oct 23
Get Unlimited data every month. Renews automatically.
£20
a month
Monthly Boost 1GB Oct 23
Get an extra 1GB of a data every month. Renews automatically.
£6
a month
Monthly Boost 3GB Oct 23
Get an extra 3GB of a data every month. Renews automatically.
£8
a month
Monthly Boost 6GB Oct 23
Get an extra 6GB of a data every month. Renews automatically.
£10
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?
Call Abroad 100 Minutes Oct 23
Get 100 international minutes every month. Renews automatically.
£6
a month
Call Abroad Unlimited Oct 23
Make as many international calls as you like. Renews automatically.
£12
a month
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.
£8
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
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.
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.