O2 Additional Line

Existing customers get more

Get 20% off your Airtime Plan on O2 Refresh, or 10% off selected sim only tariffs, when you get an additional line with us.

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Whether you want a new a tablet for yourself, or another phone for one of the family, we'll reward your loyalty with an O2 Additional Line discount.

If you haven't added your additional O2 Refresh connection yet, or if you got it on or after 15 June, you might qualify for our Family Plan. Find out more about our Family Plan.

Offer details

If you added an additional line before 15 June, you can get 20% off selected Airtime Plans on O2 Refresh, 10% off our 20GB and 25GB 12 month sim only phone tariffs, or 10% off 12 month and 30 day sim only tablet or mobile broadband tariffs.


You can't get this discount in conjunction with any other offers, such as: 

  • Tablets and mobile broadband: our free airtime for three months promotional O2 Refresh tariffs on iPad and mobile wifi. 
  • Mobile broadband: our O2 Refresh and 12 month sim only £1 shared data promotion. 

Or on plans that are incompatible, like: 

  • 12 month sim only: our 6GB, 12GB and 25GB promotional sim only phone tariffs. 
  • 30 day sim only plans. 
  • Shared data plans.

How do I get it?

Choose your new phone, tablet or sim from our online shop, then text LOYALTY to 21500 and follow the instructions to apply for your discount. If you're eligible, your additional line discount will be added to your next bill.

Perks for the family

Don’t forget you can get exclusive offers, tickets and experiences for the whole family to enjoy, through our free Priority app. Like a £5 main at Pizza Express. Just for being on O2. 

Find out more about Priority

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