"Can I get a student discount at O2?"

"O2 offers students 20% off Airtime Plans and 20% off selected accessories. You'll need to verify your student status through a standard verification platform before the discount activates. It applies to both new and upgrading customers, and it can be used alongside built-in schemes like Multisave. However, it can't be combined with a separate promo code in the same transaction — choose whichever gives the better deal."

"Can you stack multiple promo codes at O2?"

"No — O2 only allows one promo code per transaction, and codes can't usually be combined with other promotional offers unless the terms specifically say otherwise. Built-in savings programmes like Multisave, student discount, and O2 Open operate independently of promo codes, so you can still benefit from those alongside any code you apply."

"Does O2 offer an NHS or key worker discount?"

"O2 doesn't run a standalone NHS discount scheme, but its O2 Open programme covers NHS staff alongside teachers, Sainsbury's employees, and workers at many other eligible organisations. If your employer is registered, you can get up to 25% off Airtime Plans on O2 Refresh contracts. Check the O2 website to see whether your workplace qualifies — the process is straightforward and the savings are worthwhile on longer plans."

"Can I get free delivery from O2?"

"O2 offers free standard delivery across the UK on all devices, SIMs, and accessories, subject to the usual terms. If you'd rather not wait in for a courier, Click and Collect lets you pick up from a nearby O2 shop at a time that suits you. Delivery timeframes and available options may vary depending on stock and your location."

"What is O2's returns policy?"

"You can return a device within 14 days if you've changed your mind, no questions asked. For faulty devices, the window extends to 30 days — entitling you to a replacement or a full refund. Returns can be made in-store or by post, though keeping the original packaging helps. O2 may refuse a return if the item isn't in a resalable condition, so hold onto the box until you're sure about the purchase."

"What is O2 Priority and how do I access it?"

"Priority is O2's rewards programme, included free with any O2 plan. It gives you early access to concert and event tickets at O2-branded venues, plus regular offers from brands like Greggs and Caffè Nero. Register through the Priority app or website using your O2 number, and the offers refresh frequently. We'd suggest checking the app at least weekly — some of the best deals go quickly."

"What is Multisave at O2?"

"Multisave gives you 20% off airtime when you add additional Pay Monthly or SIM-only connections to your O2 account. You can include up to 20 numbers in one group, which makes it well-suited to families or housemates sharing a network. Every connection needs to be on an eligible plan, and the 20% discount applies to the airtime portion only — device costs, if any, stay the same."

"Why isn't my O2 promo code working?"

"If a code isn't applying correctly, run through this checklist:\n\n1. Your basket meets the minimum spend or plan requirements specified in the offer terms\n2. The code hasn't expired — O2 codes are typically time-limited\n3. You're not trying to combine it with another promotional offer or reduced-price plan\n4. The code is entered exactly as shown, with correct capitalisation and no extra spaces\n5. The offer applies to your chosen product — some codes exclude sale items or specific devices\n"

"What is O2 Auto-Save and do I need to activate it?"

"Auto-Save works automatically — no activation required. When your O2 Refresh handset payments come to an end, Auto-Save drops your monthly bill to the airtime-only rate without you needing to call or switch plans. Your minutes, data, and texts remain the same; only the device cost disappears. This applies to both standard Refresh and SIM-only contracts, and it's one of the main reasons we'd recommend Refresh over a traditional arrangement."

O2 Discount Codes & Vouchers • June 2026

deal Last Verified: Yesterday

20% Student Discount at O2

deal Last Verified: 3 days ago

Up to 25% off Airtime Plans with O2 Open at O2

deal Last Verified: Yesterday

20% off SIM Only Airtime Plans with Multisave at O2

deal Last Verified: 4 days ago

50GB SIM from Under £10 a Month at O2

deal Last Verified: 2 days ago

150GB SIM from Under £15 a Month at O2

deal Last Verified: Today

£55 Amazon Gift Card with Tablets and Wearables Purchases at O2 - Valid for New Customers Only

deal Last Verified: 4 days ago

£15 Amazon Gift Card with SIM Only Contracts Between £10 and £14.99 at O2 - Valid for New Customers Only

deal Last Verified: Yesterday

£65 Amazon Gift Card with All Pay Monthly Handset Contracts at O2 - Valid for New Customers Only

deal Last Verified: Yesterday

£15 Amazon Gift Card with SIM Only Contracts Between £0 and £9.99 at O2 - Valid for New Customers Only

deal Last Verified: Today

£25 Amazon Gift Card with SIM Only Contracts Between £10 and £14.99 at O2 - Valid for New Customers Only

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About the Brand

O2 is one of the UK’s largest mobile network operators, serving over 25 million customers. The brand emerged in 2002 when BT Cellnet rebranded, and was acquired by the Spanish telecoms group Telefónica in 2006. Headquartered in Slough, Berkshire, O2 operates across Pay Monthly, Pay As You Go, and SIM-only plans, alongside tablets, wearable tech, and mobile broadband.

The core offering is mobile connectivity, with a structure worth understanding before you commit. Pay Monthly contracts use O2 Refresh, which separates the handset cost from the airtime — your device payments finish after a set period, and your bill drops automatically once they do. SIM-only plans start from under £10 a month, while flagship handsets like the iPhone Air start from £50 a month with £30 upfront. Tablets, wearables, and mobile broadband devices round out the range.

Where O2 really differentiates is its perks ecosystem. Priority, included with every plan, unlocks early access to concert tickets at O2-branded venues and regular offers from brands like Greggs and Caffè Nero. Multisave takes 20% off airtime for every additional connection on one account — we’ve seen families save a meaningful amount this way. O2 Open, the employer discount programme, offers up to 25% off Airtime Plans for staff at eligible organisations including the NHS, teachers, and major retailers. Students get 20% off airtime and accessories too.

Between the automatic deals, new-customer gift card bonuses, and these built-in savings layers, there’s real value to be found here — worth bookmarking as the offers rotate regularly.

Page last updated: 12 June 2026

How to use

The current offers on this page are mostly automatic deals that apply without a code. However, O2 promo codes do appear from time to time. When one’s available, click the offer card on this page to copy it, then visit www.o2.co.uk. At checkout, look for the ‘Got a promo code?’ box, paste your code, and hit ‘Update basket’ before completing payment.

Most of the O2 deals here are automatic — no code required. These include SIM-only plans from under £10 a month, handset contracts like the iPhone Air from £50 monthly, and group discounts such as Multisave’s 20% off airtime. Click through to the O2 site, choose your plan, and the discount is built into the pricing or applied at checkout without any extra steps.

Several offers include a free Amazon gift card for new O2 customers. SIM-only contracts from £0 to £14.99 a month qualify for £15, plans between £15 and £19.99 get £30, Pay Monthly handset contracts earn £65, and tablets or wearables come with £55. These are new customers only — check the individual offer terms for the exact delivery timeframe of the gift card.

O2 runs dedicated discounts for students and eligible employees. Students get 20% off airtime plans and selected accessories after verifying their status. O2 Open, the employer discount programme, offers up to 25% off Airtime Plans — the NHS, teachers, and Sainsbury’s staff are among those already registered. Check O2’s website to see if your employer qualifies.

If any offer listed here doesn’t work as expected, or the terms seem unclear, use the report button on the offer card to flag it. We’ll investigate the issue and update or remove the listing so other shoppers aren’t caught out.

Shopping Guide

Should I go SIM-only or take a full Pay Monthly handset deal at O2?

If you’ve got a phone you’re happy with, SIM-only is almost always cheaper. O2’s SIM-only plans start from under £10 a month with the same network coverage and Priority perks. A Pay Monthly deal suits those who’d rather spread the cost of a new device, though you’ll pay more overall. We’d suggest adding up the total cost over the contract length before committing.

When’s the best time to bag an O2 deal?

O2 sharpens its offers around Black Friday, the January sales, and when new flagships launch — typically September for iPhones and February for Samsung Galaxy devices. New-customer gift card bonuses tend to run year-round but the values shift. Holding out for a seasonal event can mean better upfront pricing or larger gift card incentives.

How do I stack O2’s different discount schemes?

You can’t combine promo codes in one transaction, but you can layer O2’s built-in savings. A student could take a SIM-only plan with Multisave (20% off airtime for additional connections) and still access Priority for freebies and early ticket access. O2 Open holders get up to 25% off Airtime Plans on top of standard offers. Knowing which programmes apply before you shop is half the battle.

Is O2 Refresh worth it compared to a standard contract?

O2 Refresh separates your handset cost from your airtime plan. Once the device is paid off — typically after 24 or 36 months — Auto-Save drops your bill to the airtime-only rate automatically. On a standard contract, that full payment carries on even after the phone is effectively yours. For anyone who keeps their handset beyond the contract term, Refresh is the more economical route.