Three SIM Contracts Cashback Offers & Discounts

Get up to £80 of the price back with our Three SIM Contracts cashback offers

Join for free and just shop with Three SIM Contracts as normal. Shoppers earned £20,000+ at Three SIM Contracts in the past month using our website.

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How much cashback can you get?

24 Month SIM Plans Cashback

for 120GB for £12
£65
for 25GB for £8
£50
for UNLIMITED for £20
£80

12 Month SIM Plans Cashback

for 30GB for £8
£45
for 120GB for £12
£60
for 25GB for £8
£45
for UNLIMITED for £21
£70
for 40GB for £10
£45
for 60GB for £10
£60
for 8GB for £7
£30
for 3GB for £5
£25

This retailer also has: See Three Mobile Contracts for great offers!

Three SIM Contracts

Get outstanding deals on data, minutes and texts, from the UK’s best network for data. Use your phone abroad at no extra cost in over 70 destinations. Enjoy infinite streaming without using your data.Enjoy freebies and discounts with the Wuntu app exclusive to Three customers.Choose your offer.

More from this retail group: Three Mobile Phone Contracts , Three Mobile Broadband & Tablets and Three Pay As You Go

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Three SIM Contracts — Cut Your Mobile Costs

Three SIM Contracts Logo

Browse a wide range of SIMs and cut the cost of calling, texting or browsing by earning cashback with our Three mobile deals when you buy online.

If you’re happy with your existing Apple iPhone Pro Max, Samsung Galaxy S20 Ultra 5G 128GB, Honor, Huawei, P30 Lite or Windows device and don't want to pay an upfront cost for one of the latest mobile phones, you can take up a SIM only deal offering unlimited minutes and texts, and which run for either one, 12 or 24 months.You can opt for 4GB data, 8GB data, 12GB data, 30GB data or 100GB data, or, if you need more than that, you can choose an unlimited data SIM. Whatever you need, it's simple to do a price comparison on their existing and new customer deals. If you want to switch to one of Three’s plans from another network, you can keep your existing phone number, enjoy a great Internet experience with one of their 5G ready SIM deals and cut your bills.

Three SIM Contracts Homepage

Use Your Data as a Personal Hotspot

Three's contract SIM deals offer a range of great benefits if you don’t want to fork out for a new pay monthly phone. You can use all of your data allowance as a personal hotspot in the UK, while all of their plans offer unlimited texts and calls, which means you can send as many standard rate messages as you like in the UK without it costing you any extra.

Three’s plans also let you use your monthly data allowance abroad, as well as text and call the UK from abroad, at no extra cost thanks to Go Roam. This brilliant feature is available in more than 70 destinations, from France to Australia.

If you find yourself running out of minutes before your plan renews, you’re able to block any outgoing calls to ensure you’re not hit with any extra charges. You can also block calls and texts to numbers which are not included in your monthly allowance.

If you do find yourself running out of data halfway through the month, there’s no need to panic as you can buy more whenever you like through your My3 account. If you’re looking for some flexibility, you’ve got it.

Finally, as well as fixed data allowances, Three’s usage alerts for minutes and texts means you’ll never send more than you‘ve budgeted for. This all makes them a great alternative to expensive phone contracts. Don't forget, you can get an even better Three SIM only deal by taking advantage of our cashback offers.

Three SIM Contracts Features

5G Ready

Three are building the country’s fastest 5G network — and they want to give you the freedom to use it as much as you want, without it costing you any extra.

When it launches, all new and existing customers will be able to use it if they have one of the various 5G phones available. This applies to anyone on contract, pay as you go or who has a Three SIM contract.

All their SIM cards are 5G ready at no extra cost, which means as soon as 5G comes along, you’ll be able to experience the wonder of it with no additional charge attached. You’ll be able to upgrade your data plan whenever you need to. To be able to enjoy 5G at its best, with uncapped speeds, choose an unlimited data plan so you never run out.

Go Roam Around the World

All Three UK mobile SIM contract Advanced plans allow you to use Go Roam Around the World in 71 international destinations, at no extra cost.

This means you’ll be able to feel at home while you're away and use your phone as a personal hotspot while you’re abroad, as well as call customer services for free from your mobile. As well as this great roaming feature, Three have also teamed up with easyJet to offer customers free travel upgrades on any easyJet UK outbound flight.

You can take the hassle out of hauling your cabin bag through the airport and rushing for locker space thanks to Hands Free. This allows you to drop your cabin bag at the easyJet Plus Bag Drop and they’ll do the rest. You’ll even be able to get your bag first off the carousel at your destination.

Go Binge

The majority of Three’s pay monthly SIM Contract plans also come with Go Binge, which means nothing will stand in the way of you and your favourite TV shows, movies and music.

This won’t even be affected by your mobile data limits. Three have teamed up with the likes of Snapchat, Netflix and Apple Music to allow you to stream and snap as much as you like on your Samsung Galaxy S20 Plus 5G, Huawei P40 Pro 5G, iPhone SE or Samsung Galaxy S10 Plus without needing to worry about how much data you’re using. So, check out what Three offers are available and binge away.

Switch and Keep Your Number

If you’re switching from one of the other mobile providers, like Virgin Mobile, EE, Vodafone, BT Mobile or O2, you can keep your old phone number if you want to.

Existing Three customers switching to a new SIM only plan who are already on one of their older tariffs can switch to a new plan anytime they like if their minimum term has ended. It’s simple to do — they’ll just move your new plan details on to your existing SIM.


Cashback terms and exclusions

What will stop me getting cashback?
  • Cashback is only available for new Customers.
  • Using a promotional/voucher code not posted and approved by TopCashback.
What else is essential?
  • Purchases must be completed immediately and fully online.
  • Cashback will be validated for active Three accounts after approximately 90 days.
  • Your transaction may initially track at a lower cashback amount before being uplifted once confirmed.
  • Unless otherwise stated expect transactions for this retailer to appear within 24 hours.
  • All products are eligible for cashback apart from HomeFi, free SIMs, top-ups for existing SIMs, upgrades, existing customer offers, accessories, and add-ons such as insurance.
  • To qualify for cashback, you need to complete your purchase on the same visit. If you exit from the Three website once you’ve clicked through and then come back another time, it won’t register, and you’ll miss out on the cashback.
  • Cashback rates may increase and decrease at short notice.
  • Your transaction may initially track at a lower cashback amount before being uplifted once confirmed.
  • This merchant calculates cashback excluding VAT, delivery and any other charges.
What to do when
  • The vast majority of transactions from merchants track successfully, occasionally a transaction may not get reported. If you believe this to be the case, please submit a "Missing Cashback" query no later than 120 days after purchase date. We will be unable review claims older than this.
  • Some merchants may not be forthcoming with untracked cashback. We endeavour to chase untracked cashback but reserve the right to halt enquiries at any time. Please do not make purchase decisions based upon expected cashback as it is not guaranteed.

See also our general terms & conditions.

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