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Buy your data online 24/7

Register a card so you can Top-up, buy data Add-ons and check your balance 24-7.

more info

Usage Calculator

Want to know which Mobile Broadband plan is best for you?

Estimate your Broadband usage

Save £50.

Mobile Broadband dongles
now only £49.99 on
Pay AS You Go

Buy Now

Getting started with Pay As You Go Mobile Broadband

Step 4: We think that being able to buy your data online, 24-7, is the most convenient method. If you agree, here's how.

  • Register a bank card on My3
  • You can top-up with £10 when you first register. £10 is the maximum the first Top-up time, whilst your card details are verified for your security protection.
  • Convert your £10 Top-up to a Mobile Broadband Add-on to get 1GB of data (If you don't you will be charged £1 per MB)
  • After 7 days, you can top-up as often as you like, as much as you like.

Check your usage

We will send you a text message to let you know when the amount of data left on your Mobile Broadband Add-on is running low, or your data Add-on is about to expire.
My3 lets you check how much data you have used, and how much you've got left. You can check your account at My3 24-7.

Text messages :: click to hide this image

How it works

If you buy a dongle for PAYG, you will need to Top-up and convert your Top-up to a Mobile Broadband Add-on to get your great value monthly data allowance.

Step 1: Buy a Top-up from £10 up to £50. These are available at over 100,000 locations - Supermarkets, Petrol stations, Convenience Stores or wherever you see the 'top-up' sign.

Step 2: Then activate your Top-up at www.three.co.uk/My3

Step 3: Convert your Top-up to an Add-on at My3.

IMPORTANT: If you do not convert your Top-up to a Mobile Broadband Add-On immediately after Topping up, you will be charged £1 per MB.

Why not pick a plan?
Add-on Price Typical Usage (approx)
Broadband Lite 1GB £10 * 30 hours web surfing
+ 650 emails
+ 60 Downloaded music tracks
+ 30 Downloaded videos
Broadband Plus 3GB £15 * 100 hours web surfing
+ 2000 emails
+ 200 Downloaded music tracks
+ 100 Downloaded videos
Broadband Max 7GB £25 * 200 hours web surfing
+ 4500 emails
+ 400 Downloaded music tracks
+ 200 Downloaded videos
*These are all valid for 30 days – if you don't convert your top-up you will be charged at £1 per MB
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