Personal | Business
Sign in or Register
O2 Logo White
  • Shop

    Phones

    • Phones
    • Upgrades
    • Apple iPhone
    • iPhone 16
    • Android phones
    • Refurbished phones

    Tablets, laptops and dongles

    • Tablets
    • Apple iPad
    • Android tablets
    • Laptops
    • Dongles and mobile WiFi

    SIMs and Tariffs

    • Pay Monthly SIMs
    • Pay As You Go SIMs
    • Tariffs
    • International
    • Top-up
    • Essential Plan

    Accessories and more

    • Tech and accessories
    • Apple Watch
    • Smartwatches
    • AirPods
    • Coming soon
    • Great deals
  • Why O2

    Flexibility

    • O2 Switch up
    • O2 custom plans
    • Multisave
    • O2 Recycle
    • Click and collect

    Perks

    • O2 Extras
    • Volt
    • Priority tickets and offers
    • Perks at O2 venues
    • Pay As You Go Rewards

    Services

    • Manage your account
    • Keeping kids safe online
    • Ideas and Inspiration
    • Insurance

    Connected

    • Coverage checker
    • Network coverage
    • 5G coverage
    • O2 WiFi
    • Using your phone abroad
    • Live bigger with Volt

      Discover extra benefits
    • O2 bubbles

      See all the reasons to choose O2

      Why join O2?
  • Help

    Help and support

    • Account
    • Products and services
    • Device guides
    • Network and international
    • Safety and security

    Most popular

    • Activating your SIM
    • eSIM
    • How to track your order
    • Payment support
    • Understanding your bill

    Useful links

    • Store locator
    • Network status
    • Faulty device
    • Virgin Media O2
    • Fraud help

    Contact us

    • O2 Community
    • My O2 App
    • Contact us
  • My O2
  • Search
  • Basket

Mobile

Terms & conditions

Pay Monthly 8GB Data Bolt On Terms and Conditions

8GB Data Bolt On for Selected Customers

  1. This Bolt On is only available to new and upgrading On & On and O2 Refresh customers connecting to a service through direct O2 sales channels.

  2. This offer is only available on a £47 a month On & On tariff and on a £47 a month O2 Refresh tariff including a £22 a month airtime plan and a £25 a month handset plan (please note that if you chose to pay off some of your handset plan early on this O2 Refresh tariff you will still be eligible for this Data Bolt On).

  3. Under this offer, you can pay an additional £5 a month and receive an 8GB a month data allowance (instead of the normal 4GB a month allowance for these tariffs).

  4. This 8GB data allowance is valid on the day of purchase and for 30 calendar days from the day after purchase.

  5. This offer is subject to status, credit checks and payment by direct debit. It is also subject to availability.

  6. Any unused data allowance will expire after 30 days and will not roll over into the following month.

  7. Your standard terms and conditions of service (including your tariff terms and your airtime agreement) will continue to apply when using the Bolt On.

  8. The Bolt On is for your personal non-commercial use. If, in our reasonable opinion, you're using it for commercial purposes or contrary to your terms of service, we reserve the right to charge you or restrict your use.

  9. We may vary or amend these terms, but if it's to your significant disadvantage we'll notify you.

  10. Any amendment to these terms and conditions will be explained at the top of this page.

  11. We may remove or discontinue the Bolt On at any time.

  12. We reserve the right to terminate your use of the Bolt On, if you are, in our reasonable opinion, in breach of your terms of service.

  13. Unless terminated earlier, the promotional Bolt On will last until you terminate your agreement or take out a new agreement whichever is the soonest.

  14. You have to give us 30 days' notice if you want to cancel your Bolt On or Bolt Ons by calling the Customer Service number on your monthly bill.

  15. This Bolt On does not allow access to 4G data. For details of 4G access Bolt Ons see our website

  • Find a store
  • Check our network
  • Sign in to My O2
  • Track my order
  • Search

Popular in shop

  • iPhone 16 Pro Max
  • iPhone 16 Pro
  • iPhone 16
  • Apple Watch Series 10
  • Apple iPad A16
  • Samsung Galaxy S25 Ultra
  • Samsung Galaxy S25
  • Samsung Galaxy Z Flip6
  • Google Pixel 9 Pro XL
  • Google Pixel 9 Pro
  • SIM Only Deals
  • Virgin Media broadband deals

Help and Support

  • Help home
  • Contact us
  • My O2
  • Collection and delivery

Shop

  • Phones
  • Tablets
  • Pay Monthly SIM
  • Collection and delivery
  • Virgin Media O2 Joint Venture
  • Facebook
  • Youtube
  • X
  • Instagram
  • About O2
  • Better Connections Plan
  • Careers
  • News & PR
  • Sponsorship
  • Virgin Media and O2
  • Accessibility
  • Terms & Conditions
  • Privacy policy
  • Cookie policy
  • Modern Slavery Statement

©2025 Telefonica UK Limited

In relation to consumer credit, Telefónica UK Limited is authorised and regulated by the Financial Conduct Authority (Reference Number 718822)

  • Home
  • Terms & conditions
  • Mobile
  • Pay Monthly 8GB Data Bolt On

Related links

  • Business
  • Mobile
  • Other products and services
  • Archive
  • Promotions, Prize Draws and Rewards
  • Online shop purchasing terms
  • Finance & Insurance
  • Broadband
  • Privacy Policy

  • Terms & conditions