O2 Discount Codes October 2026
Find 15 manually checked O2 Promo Codes for October 2026, including Discount Codes, discounts and exclusive deals. Expired offers are removed regularly.
O2 offers 0 coupon codes and 15 deals as of October 2026. Today's top offer: £10 Bill Credit with Customer Referrals. Codes are verified and updated daily.
Get double the data on your O2 rolling plan SIM for the first three months. Plus, enjoy Disney+ on O2 as an inclusive extra.
Receive a £10 credit on your O2 bill when a friend signs up using your referral. The credit applies after their first successful payment.
Get double your data allowance for six months when you purchase selected Pay As You Go phones or dongles. Perfect for staying connected over the summer holidays.
Acquire a mobile broadband pocket hotspot device starting at $49. Stay connected on the go with a portable Wi-Fi solution.
Order a free O2 SIM card to get started with Pay As You Go or monthly plans. Shipping is included with this initial order.
Sign up as a new O2 customer and receive a £20 credit applied to your account. This is valid on selected monthly plans and contracts.
Browse a selection of quality refurbished handsets priced below $200. Devices come with a warranty and are thoroughly checked.
Get credit towards a new phone or tablet when you trade in your old device. The value depends on the condition and model of your trade-in.
Save half price on certain data-only SIM plans designed for tablets. This promotion is available for a limited time.
Eligible students can save 20% on selected monthly SIM-only plans. Verification through a student ID platform is required for this discount.
Access a range of discounts and experiences through O2 Priority. This includes offers on food, entertainment, and fashion.
Members of the Blue Light community can access exclusive deals on O2 SIM plans. Present your valid Blue Light Card for these offers.
Receive an extra £15 bonus credit when you top up your Pay As You Go SIM by a certain amount. This applies to eligible top-ups.
Select O2 plans include a complimentary 6-month subscription to Disney Plus. Check plan eligibility for this entertainment offer.
Add multiple SIMs to a single O2 account and receive discounts on each additional line. Consolidate your family's mobile bills.
Customer Reviews
Decent data only SIM, but support could be quicker
Anyone else finding O2 pretty good for data-only SIMs? I picked up one for my dongle a few weeks back, and the setup was super straightforward. Connection speeds have been reliable, and the O2 Priority rewards are a nice perk for other things. I did have a quick question about checking my data balance – I found the info eventually on their site, but it took a bit of digging, which was a minor niggle. Overall, happy with the purchase and the value.
Great value with the rolling plan
Thinking of switching to O2 for your SIM? I picked up one of their rolling plan SIMs recently, and I'm pretty happy with it. The process of getting it set up was straightforward, and the O2 Priority rewards are a nice bonus, much better than some other networks like Giffgaff or Tesco Mobile. I did have to search a bit to figure out how to top up my O2 PAYG SIM for a friend's phone, which wasn't immediately obvious on their main site. Overall, good signal and solid data speeds for what I pay.
So happy with my 5G SIM!
I just got a 5G SIM from O2 and it's fantastic! The speeds are incredible, way faster than I expected. Delivery was super quick too, it arrived in just a couple of days. I'm definitely going to recommend O2 to all my friends who need a new mobile plan. I'll be back for sure!
Reliable as always
This isn't my first time with O2, I've been a customer for a few years now, mostly on their Big Bundles PAYG SIMs. This latest order for a rolling plan SIM went just as smoothly as my previous ones. The website is easy to navigate, and the activation process is always a breeze. It's nice to know I can count on them for consistent service and no unexpected hiccups. That reliability is why I keep coming back, even with all the other options out there. It's just a dependable network.
Good value, delivery was okay
I ordered a monthly SIM only plan with extra data. The plan itself offers decent value for the price, especially with the extra data offer. The setup was straightforward, and I managed to keep my old number without any issues. Delivery took about 5 days to reach me in Cardiff, which felt a bit slow compared to some other providers I've used. Customer service was helpful when I called about the activation, though I had to wait on hold for a bit. Overall, a solid choice, but they could probably speed up their shipping.
Got a new phone, all good
So, I snagged one of those refurbished handsets from O2 last week, a Samsung. It came looking really good, honestly, you'd barely know it wasn't brand new. The whole process, from picking it out online to getting it delivered, was pretty chill. I just popped in my old O2 SIM and it worked right away. No drama, which is always nice when you're buying tech. Felt like a good deal overall.
Great savings on my PAYG
I was really looking to save some money on my mobile, so I checked out O2's Pay As You Go phones. I found a good deal on a basic smartphone, and the new customer offer gave me some extra credit, which was a nice bonus. It felt like I got good value for what I paid. The phone arrived pretty fast too, and setting up the Big Bundle was simple. Definitely felt like a smart purchase for my budget.
O2 Community Discussion
Share tips, ask questions & help fellow shoppers save more
Comparing O2 with Giffgaff for a PAYG SIM. Is the O2 network much better or is Giffgaff just as good these days for coverage?
Does O2 still do those Disney Plus deals? Looking for a new contract and that would sway me.
Heard about student discounts for O2. How do I actually get one, is it a promo code or something?
Thinking of switching to O2 for a SIM only plan. How long does it usually take to get the SIM delivered? I'm in Manchester.
I'm looking at getting a refurbished phone from O2. Are they any good, like genuinely decent condition or super scratched up?
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