O2 Promo Codes & Cashback 2021

Updated February 24, 2021
O2 is the UK’s leading provider of mobile phones and mobile broadband, offering a great choice of phone handsets, SIM only, tablets, wearables and iPad SIM deals. As well as all this, O2 also offers its customers amazing exclusive incentives. Make sure to use O2 promo codes and O2 discount codes for savings on your next plan.
Cashback Rates
£50 cashback
for a pay monthly SIMO contract with a tariff of £20 - £24.99
8 uses today
£75 cashback
for a pay monthly SIMO contract with a tariff of £30+
1 use today
2% cashback
for all Smartwatches sales, including Apple Watch Series 5
£10 cashback
for a pay monthly SIMO contract with a tariff of £9.99 or less
£22.50 cashback
for a pay monthly SIMO contract with a tariff of £10 - £14.99
£40 cashback
for a pay monthly SIMO contract with a tariff of £15 - £19.99
£65 cashback
for a pay monthly SIMO contract with a tariff of £25 - £29.99
3% cashback
for accessory sales

£50
OFF
5 uses today

£50 off selected refurbished phones when you use this O2 promo code

£50 Off
5 uses today

£50 off selected refurbished phones when you use this O2 promo code

£250
OFF
5 uses today

O2 Voucher Code: Samsung S10 for up to £250 off with no upfront fee

Use this O2 discount code and save up to £250 off when you buy the Samsung Galaxy S10. Plus, enjoy no upfront fees.
£250 Off
5 uses today

O2 Voucher Code: Samsung S10 for up to £250 off with no upfront fee

Use this O2 discount code and save up to £250 off when you buy the Samsung Galaxy S10. Plus, enjoy no upfront fees.

£50
OFF
1 use today

£50 off the upfront cost on the Apple iPhone Xs with this O2 discount code

£50 Off
1 use today

£50 off the upfront cost on the Apple iPhone Xs with this O2 discount code

£200
OFF
3 uses today

Use this O2 discount code for £100 off the Huawei P30

Shop online and enjoy £100 off the Huawei P30 phone when you buy at O2 and use this voucher code at checkout.
£200 Off
3 uses today

Use this O2 discount code for £100 off the Huawei P30

Shop online and enjoy £100 off the Huawei P30 phone when you buy at O2 and use this voucher code at checkout.

20%
OFF
6 uses today

20% off Airtime Plans with the O2 student discount

20% Off
6 uses today

20% off Airtime Plans with the O2 student discount

20%
OFF
3 uses today

20% off Airtime with with the Family Plan

Add up to 20 connections and score 20% off for every eligible connection.
20% Off
3 uses today

20% off Airtime with with the Family Plan

Add up to 20 connections and score 20% off for every eligible connection.

£20
1 use today

Sim Only Deal: 150GB of data for £20 per month (50% Off)

Get 150GB data per month with this sim only deal from O2 for £20 per month for a 12 month plan.
£20
1 use today

Sim Only Deal: 150GB of data for £20 per month (50% Off)

Get 150GB data per month with this sim only deal from O2 for £20 per month for a 12 month plan.

£10
OFF
2 uses today

£10 free credit with select SIM cards

Check out these O2 SIM Only offers with pay as you go plans. Right now, when you buy a £5, £10, £15, or £30 Big Bundle you'll receive a £10 credit with activation.
Get Deal
£10 Off
2 uses today

£10 free credit with select SIM cards

Check out these O2 SIM Only offers with pay as you go plans. Right now, when you buy a £5, £10, £15, or £30 Big Bundle you'll receive a £10 credit with activation.

50%
OFF
1 use today

Limited Time - Up to 50% off top-brand headphones and speakers

Get Deal
50% Off
1 use today

Limited Time - Up to 50% off top-brand headphones and speakers

FREE
SUBSCRIPTIONS
2 uses today

Free music, audiobook or TV subscriptions with your device or SIM Only contracts

Choose an O2 extra with your devices or SIM contracts for free! Get Audible, Prime Video, Amazon Music and many more without any extra costs for up to 6 months!
Free Subscriptions
2 uses today

Free music, audiobook or TV subscriptions with your device or SIM Only contracts

Choose an O2 extra with your devices or SIM contracts for free! Get Audible, Prime Video, Amazon Music and many more without any extra costs for up to 6 months!

FREE
DELIVERY
1 use today

Free delivery on all orders

Free Delivery
1 use today

Free delivery on all orders

£350
OFF
1 use today

Tablets on sale for up to £350 off for a limited time

Get Deal
£350 Off
1 use today

Tablets on sale for up to £350 off for a limited time

FROM
£47
1 use today

iPhone 12 Pro 5G with plans from £47

From £47
1 use today

iPhone 12 Pro 5G with plans from £47

£330
OFF
1 use today

Ending Soon: Nearly £330 off a Microsoft Surface Pro X

Get Deal
£330 Off
1 use today

Ending Soon: Nearly £330 off a Microsoft Surface Pro X

£25
1 use today

Selection of smartphones and plans under £25 per month

You can enjoy major savings on your next phone and data plan. Shop this limited time O2 sale and enjoy phone deals under £25 per month.
£25
1 use today

Selection of smartphones and plans under £25 per month

You can enjoy major savings on your next phone and data plan. Shop this limited time O2 sale and enjoy phone deals under £25 per month.

FREE
TRIAL
1 use today

6 months of Disney+ for free with new plans and upgrades

Free Trial
1 use today

6 months of Disney+ for free with new plans and upgrades

FROM
£40
4 uses today

iPhone 12 5G with plans from £40 a month

From £40
4 uses today

iPhone 12 5G with plans from £40 a month

FREE
GIFT
1 use today

Free pair of Beats headphones when you buy an Apple Watch 6 with this special offer

Get Deal
Free Gift
1 use today

Free pair of Beats headphones when you buy an Apple Watch 6 with this special offer

£2
OFF
1 use today

£2 off your monthly bill when you add Disney+ to your current plan

£2 Off
1 use today

£2 off your monthly bill when you add Disney+ to your current plan

£250
OFF
1 use today

Clearance: Phones and tablets for up to £250 in savings

Explore the O2 Shop clearance section and save on accessories, tablets, and phones for a limited time.
£250 Off
1 use today

Clearance: Phones and tablets for up to £250 in savings

Explore the O2 Shop clearance section and save on accessories, tablets, and phones for a limited time.

£5
OFF
1 use today

Pay As You Go Offer: Register for My O2 and score a £5 free credit

£5 Off
1 use today

Pay As You Go Offer: Register for My O2 and score a £5 free credit

FROM
£15
1 use today

Apple and Samsung accessories starting from £15

From £15
1 use today

Apple and Samsung accessories starting from £15

IN STORE
1 use today

Free Click and Collect available in select stores

In Store
1 use today

Free Click and Collect available in select stores

FREE
RETURNS
2 uses today

Free returns on all orders within 28 days

Free Returns
2 uses today

Free returns on all orders within 28 days

Popular Expired O2 Discount Codes
£150 Off
1 use today

O2 voucher for £150 off upfront costs this summer

Enjoy this O2 deal and save £150 on upfront costs with this promo code at checkout.
£18
1 use today

20GB SIM-only plan for £18 a month | 25GB for £20 | 50GB for £28

Catch these O2 Sim Only offers with prices from £18 for 20GB!
£144 Off
3 uses today

Up to £144 off the Apple iPhone XR when you apply this O2 discount code

Popular O2 Vouchers

Voucher Codes & DealsValueDiscount TypeStatus
Free O2 voucher codes for 10% off contracts10% OffOnline VoucherExpired
O2 £30 off upfront costs£30 OffOnline VoucherExpired
Free top up codes for O2Free Top UpOnline VoucherExpired
O2 20% off SIM free phones20% OffOnline VoucherExpired

More About O2

O2 Online Top Ups

If you're considering your next mobile purchase or thinking about switching carriers, there are lots of options available at O2 online! You can choose from a variety of discounted phone deals or opt for an O2 SIM only deal. It's easy to top up your credit by phone or using O2 online top upservice, so even if you're on a PAYG basis, you won't run out of phone credit any time soon!


O2 Phone Plans

O2 phone plans are easy to tailor to your needs, meaning you get the best phone deals that are customised to your exact requirements. It's easy to upgrade when you choose  a customised phone plan from O2, and you can also spread your balance over 36 months if preferred. Don't forget to shop around for the best O2 promo codes before signing up for your new price plan. 


Contact the O2 Customer Service Team 

Managing your O2 phone service, and using O2 discount codes, is quick and simple from your personal online account, but there are sure to be times you need to get in touch with the O2 customer service team. You may need to find out more about O2 WiFi calling, or perhaps you need to call O2 to cancel your contract. No matter the reason, you can get in touch with a representative by using the O2 phone number, 202, from your mobile device. All other phone numbers are listed on the O2 website; alternatively you can chat with an O2 expert online using the LiveChat facility as well.

FAQs with O2


Does O2 offer student discounts?

Yes. As a student you will be able to get a 20% discount on airtime with your Refresh Plan. You can also receive 20% off select tech accessories. Just prove your student status and start enjoying savings on your mobile plan.


What are the best discounts that O2 offers?

O2 has a whole lot of discounts to choose from. Some of the best and popular discounts include free credit on select SIM only plans, free gifts with mobile phone purchases, 20% off airtime with the family plan, free delivery on all orders and lots more. Browse the Quidco website to stay updated on the best O2 discounts throughout the year.


Where can I find O2 discount codes?

You can either search on the O2 site for discount codes which are published from time to time or you can let Quidco do the job for you. Get updates on the best deals on top mobile phone brands like Apple and Samsung as well as SIM plans when you search on Quidco. Anticipate the Black Friday deals coming soon so you do not miss some of the best discount codes of the year.