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Deal Link: O2 SIM 40GB for £8 / 12 months Contract via MoneySuperMarket
Available for new customers or additional Sim.
But workaround in the OP is mainly for existing O2 customers wanting to avoid £2.50 price hike from April 2026 and choosing to stay with O2 for various reasons like better coverage, Volt Benefits etc.
Data: 40GB 5G (80GB if you have Virgin Broadband)
Minutes: Unlimited
Texts: Unlimited
Contract Length: 12 months
Monthly cost: £8 (£10.50 from 1st April 2027)
Total Cost for the contract: £96
Features: O2 Priority benefits. All offers and prize draws – Priority
Roaming: Free EU Roaming included. Roaming Limit of 25GB applies
Existing Customers – Try these steps to avoid price increase
I successfully managed to upgrade 2 x existing contracts using this method
1. Login to your O2 account
2. Click on My O2 link
3. Scroll down to Looking to Upgrade section
4. Select See your offer
5. Select View sim only deals
6. Choose any plan SIM Plan
7. Copy the Full Unique URL in a notepad from step 6 (number after bpiId is unique to your account)
It should look something like this:
8. Delete these highlighted texts after offering-id
9. Replace it with 40GB Plan texts
2025SOHA12P1.04%3A40GB%3A1
For 50GB Plan for £9 use this
2025SOHA12P1.04%3A50GB%3A1
For 75GB plan for £10 use this
2025SOHA12P1.04%3A75GB%3A1
10. Go back to offer page (Step 7 – where you copied the URL)
11. Paste URL from Step 9
12. Make sure that you are upgrading your existing number
13. Choose Device Type and Select Add to Basket
14. Confirm your order
15. If you qualify for volt benefit and your volt benefit is not applied at this stage, dont worry. It make 4-5 days before it gets applied
These O2 SIM deals are always great value if you have Virgin Media Broadband:
Double the mobile data on every eligible O2 Pay Monthly plan in your household
FREE Broadband speed boost to the next available level (up to a max of 1Gbps)
WiFi guarantee included at no extra cost and up to three WiFi pods if needed
O2 Travel Inclusive Zone, where you can roam in 75 destinations at no extra cost. EU Roaming Following 27 non-EU countries are included in O2 Travel Inclusive Zone including Unites States, Australia and Canada
Non-EU Roaming: Included Countries
Argentina, Australia, Botswana, Canada, Chile, Colombia, Costa Rica, Ecuador, El Salvador, Greenland, Guatemala, Guinea, Guyana, Honduras, Madagascar, Mexico, Myanmar, New Zealand, Nicaragua, Panama, Paraguay, Peru, Rwanda, United States, Uruguay, Venezuela, Yemen
EU Roaming: Included Countries
Austria, Azores, Belgium, Bulgaria, Canary Islands, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, French Guiana, Germany, Gibraltar, Greece, Guadeloupe, Guernsey, Hungary, Iceland, Ireland, Isle of Man, Italy, Jersey, Latvia, Liechtenstein, Lithuania, Luxembourg, Madeira, Malta, Martinique, Mayotte, Monaco, Netherlands, Norway, Poland, Portugal, Reunion, Romania, Saint Barthelemy, Saint Martin, San Marino, Slovakia, Slovenia, Spain, Sweden, Switzerland, Vatican City.
Who can get Volt benefits
Anyone can take out one of our Volt bundles to grab Volt benefits. If youre already with O2, youll get Volt benefits once you also take out an eligible Virgin Media broadband pack or bundle.
And the same goes the other way if you already have Virgin Media broadband but arent with O2, you can take out an eligible O2 Pay Monthly SIM, phone or tablet to get Volt benefits.
Or, if theres already at least one person in your household with an eligible O2 plan and you have Virgin Media broadband registered at the same address, you can get Volt benefits.
