Six ways to save money on your mobile phone plan with Three

March 18, 2024

With monthly budgets getting squeezed, you might be looking for ways to save money on your mobile plan.

If you switch to Three, you won’t just find a great phone deal. We’ve got a whole range of ways that can help you to save money and even get extra rewards, which can all really bring down your monthly costs.

Here are six ways you can save money with Three.

Switch and save

For a limited time, you can get an extra discount on selected phones when you switch to Three and keep your existing phone number. 

These phones are all eligible for our Switch and save discount:  

How to get the discount

You’ll need to choose one of the phones above, on a Value or Complete airtime plan with either Unlimited, 150GB, or 15GB of data. You’ll also need to take out a 24 month airtime plan.  

So you can switch your number, you’ll have to have a PAC code ready to enter when you checkout (you’ll miss out on the discount if you checkout without one). The easiest way to get your code is to text PAC to 65075 from the number you want to keep. You’ll be sent a PAC code within 60 seconds. 

Read more about switching


If you’re upgrading, trading in your old device is an easy to way to save some money.

You can get a quote in just a few seconds by visiting Three Recycle and providing a few details about your phone.

If you’re happy with the quote, we’ll send you a freepost envelope. Pop it in the post, and if it meets our criteria, we’ll send your payment the same day we receive your device.

Go SIM only

If you don’t need the latest phone, and the handset you’re using now still works fine, then an easy way to save is to get a SIM only plan.

There’s a huge range of SIM plans for phones available to suit any budget, as well as regular special deals to save you even more money. Check out our latest SIM only deals.

Three Your Way

All our pay monthly phone plans are customisable, so you can tailor them to suit your budget. You can choose how long your plan will last and how much you want to pay upfront. 

Then you can choose your features. You might want to keep things simple and go with a Lite plan. But if you do a lot of travelling, then consider the Value plan as that comes with free roaming

If you’re planning on keeping your new phone for a long time, then the Complete plan is for you. It comes with extended warranty and screen repair, so you can keep your device in tip-top condition. Read more about Three Your Way.


Naturally, you’ll be thinking of monthly and upfront costs when you’re choosing your next phone plan. But there are other benefits to switching to Three that can save you money.

Our Three+ rewards app gives our customers daily discounts on everyday things, like your morning coffee, eating out, and going out.

You can save money on big brands like Uber Eats, Café Nero, Krispy Kreme, Cineworld, and more. And all those savings can quickly start to add up.

Refer a friend

Refer a friend is another easy way to get rewards from Three. It takes just a few seconds to get signed up and then all you have to do is send a link to your friends. 

If they click the link to our site and purchase a phone, tablet, SIM, or broadband plan, you’ll get to share a cash reward of up to £80.

Ready to switch?

Check out our latest offers on mobile phone deals or SIM only deals now. 

For more information on Switching, head over to our switching hub to learn about how to move your number over to Three.