50% Three Voucher - Save today!
Valid until 31/12/2024
Valid until 31/12/2024
No expiry date
Valid until 31/12/2024
Valid until 31/12/2024
Valid until 24/05/2024
Valid until 26/04/2024
Valid until 27/05/2024
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Recently Expired Three Discount Codes & Promo Codes
Feel free to try one of these Three discount codes that may still work.
Valid until 08/05/2023
Valid until 03/12/2023
Valid until 14/01/2024
Valid until 31/12/2023
Valid until 28/11/2023
Valid until 26/11/2023
Valid until 19/11/2023
Valid until 19/11/2023
Valid until 12/11/2023
Valid until 28/10/2023
Valid until 17/10/2023
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Explore All Valid Three Deals & Sales for April 2024
Discount | Three Voucher Details | Expires |
|---|---|---|
Deal | Three Deal: Free Click and Collect Service | 31 December 2024 |
50% | Three: Up to 50% off with Student Discount + Free Gifts | 31 December 2024 |
£9 | Three Deal: Get 30GB Plans for £9 per Month | No expiry date |
Deal | Free Delivery on Orders at Three | 31 December 2024 |
Deal | Three Deal: Get the Exclusive Deals and Latest Promotions with Mobile App Download | 31 December 2024 |
£29 | Tracking Devices starting from £29 when you Redeem this Offer | 24 May 2024 |
£13 | Smartwatches from £13 when you Redeem this Offer | 26 April 2024 |
£10 | Three Deal: Charging and Cables from £10 | 27 May 2024 |
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Useful tips and information
Three student discount
With the Three student discount, you can save up to 50% on SIM-only deals and 20% when you purchase a device with your contract. Secure the half-price student deal by signing up with UNiDAYS and verifying your student status. Upon successful verification, the student code will be automatically sent to your inbox.
Three birthday discount
It's always worth checking your inbox when your special day arrives. Three sends out attractive birthday discounts that offer price reductions on your next order.
How to use your Three voucher code
On the hunt for great bargains when shopping for a new smartphone or SIM-Only deals, make sure to pick one of our Three vouchers before placing your order. That way, you'll be sure to secure big savings. Simply copy the code, pick the smartphone or contract you'd like to buy, and proceed to the payment section. You can paste your Three coupon code into the box "Promo code". Clicking on "Apply" will reduce your total by the promised discount.
What to do if your Three discount code isn't working
In some cases, you may run into an error code while redeeming your Three promo code. If so, pay attention to the following tips:
Only use codes meant for your customer group.
Verify whether the code is meant for the selected Three offer.
Ensure you've exceeded the minimum order value of your code.
Exclusively apply valid coupons.
Can I benefit from any existing customer deals?
As an existing Three customer, you can take advantage of several cashback offers. For instance, secure an attractive cashback for SIM-only orders or when you purchase the newest smartphone. All of the available cashback deals can be found right here on our Voucherbox website.
Three first order discount
New customers have the opportunity to get the first three months for free when purchasing a SIM-only plan. Take advantage of the exclusive Three offer by choosing the plan that works best for you and clicking on "Buy now". The free months will be automatically credited to your account and billing will only start once the first three months have expired.
Does Three offer a blue light discount?
Blue Light Card holders can regularly take advantage of discounted SIM-only plans at Three. Here's how to claim the attractive NHS discount:
Log in to your account on the Blue Light Card platform.
Use the search bar to find the Three discount code.
Copy down the code and use it at the checkout.