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O2 Promo Codes & Cashback 2019

Updated September 14, 2019
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.
Top cashback offers
£90 cashback
for a pay monthly handset contract with a tariff £45+ (excluding iPhone XR)
3 uses today
2% cashback
for all PAYG and prepay handsets (excluding iPhone XR, XS and XS Max)
3% cashback
for accessory sales
2% cashback
for all Smartwatches sales
£50 cashback
for a pay monthly SIMO contract with a tariff of £20 - £24.99
£40 cashback
for a pay monthly SIMO contract with a tariff of £15 - £19.99
£22.50 cashback
for a pay monthly SIMO contract with a tariff of £10 - £14.99
£10 cashback
for a pay monthly SIMO contract with a tariff of £9.99 or less
£80 cashback
for a pay monthly handset contract with a tariff £40 - £44.99 (excluding iPhone XR)
£70 cashback
for a pay monthly handset contract with a tariff £35 - £39.99 (excluding iPhone XR)
£50 cashback
for a pay monthly handset contract with a tariff £30 - £34.99 (excluding iPhone XR)
£40 cashback
for a pay monthly handset contract with a tariff £25 - £29.99 (excluding iPhone XR)
£30 cashback
for a pay monthly handset contract with a tariff £15.01 - £24.99 (excluding iPhone XR)
£20 cashback
for a pay monthly handset contract with a tariff of £15 or less (excluding iPhone XR)
£75 cashback
for a pay monthly SIMO contract with a tariff of £30+
£65 cashback
for a pay monthly SIMO contract with a tariff of £25 - £29.99

20%
OFF
4 uses today

20% off mobile phone accessories

Save 20% on mobile phone accessories such as wireless charging pads, phone cases, ear buds, screen protectors, and others with this O2 promo code.
20% Off
4 uses today

20% off mobile phone accessories

Save 20% on mobile phone accessories such as wireless charging pads, phone cases, ear buds, screen protectors, and others with this O2 promo code.

20%
OFF
2 uses today

Over 20% off clearance devices

Grab a new tablet or smartphone from brands like Apple, Samsung, Sony, and LG for over 20% off.
20% Off
2 uses today

Over 20% off clearance devices

Grab a new tablet or smartphone from brands like Apple, Samsung, Sony, and LG for over 20% off.

20%
OFF

20% student discount on Airtime Plans

20% Off

20% student discount on Airtime Plans

FREE
GIFT
1 use today

Get £25 in Amazon vouchers when you refer a friend

Free Gift
1 use today

Get £25 in Amazon vouchers when you refer a friend

£25
2 uses today

100GB for £25 on the 18-month sim-only plan

For a limited time, get this O2 sim-only deal for £25 and enjoy 100GB of data with unlimited minutes and texts.
Get Deal
£25
2 uses today

100GB for £25 on the 18-month sim-only plan

For a limited time, get this O2 sim-only deal for £25 and enjoy 100GB of data with unlimited minutes and texts.

20%
OFF
10 uses today

Receive 10-20% off with O2 promo codes and offers

20% Off
10 uses today

Receive 10-20% off with O2 promo codes and offers

FREE
1 use today

Free Pay As You Go SIMs

Sign up for a pay-as-you-go plan and you'll get the SIM card for free.
Free
1 use today

Free Pay As You Go SIMs

Sign up for a pay-as-you-go plan and you'll get the SIM card for free.

FREE
DELIVERY
1 use today

Free delivery on all orders

Free Delivery
1 use today

Free delivery on all orders

£22
2 uses today

40GB for £22 with 18-month sim only plans

Get Deal
£22
2 uses today

40GB for £22 with 18-month sim only plans

£18
4 uses today

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

£18
4 uses today

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

50%
OFF
3 uses today

20-50% off airtime with Family Plan

50% Off
3 uses today

20-50% off airtime with Family Plan

£10
OFF
1 use today

£10 free credit when you buy a Big Bundle

Grab any O2 pay as you go sim card bundle and receive a £10 credit.
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£10 Off
1 use today

£10 free credit when you buy a Big Bundle

Grab any O2 pay as you go sim card bundle and receive a £10 credit.

25%
OFF

Shop like-new devices for over 25% off

Enjoy great discounts on these refurbished phones that include a 12-month warranty.
25% Off

Shop like-new devices for over 25% off

Enjoy great discounts on these refurbished phones that include a 12-month warranty.

£10
2 uses today

2GB Pay As You Go SIM for £10

£10
2 uses today

2GB Pay As You Go SIM for £10

£30
OFF

£30 off any tablet with 15GB tariff phone purchase

£30 Off

£30 off any tablet with 15GB tariff phone purchase

£15

12-month 6GM sim plan for £15

£15

12-month 6GM sim plan for £15

£124
OFF

£124 off your OnePlus 6T device plan

£124 Off

£124 off your OnePlus 6T device plan

FREE
GIFT

Free Apple Pencil with iPad purchase

Free Gift

Free Apple Pencil with iPad purchase

IN STORE

Free Click and Collect on all orders

IN STORE

Free Click and Collect on all orders

FREE
RETURNS

Free returns on all orders within 14 days

Free Returns

Free returns on all orders within 14 days

Popular Expired O2 Discount Codes
£144 Off

Up to £144 off the Apple iPad Air

Free Tech

Free speakers, earbuds or action cam with a 100GB Sim Only Plan for £30/month

£40 Off

Limited Time Sale - extra £40 off Samsung Galaxy Buds when you shop online

More About O2

O2 Online Top Ups

If you're considering your next mobile purchase or thinking about switching supplier, 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 which 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 customer services using 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.