Skip to Search Skip to Content Skip to Footer

Order by phone: 0800 033 8006

Replacement SIM cards

Need to order a replacement SIM card? Whether yours has been lost or stolen, or you just need a different size, here’s everything you need to know about replacing your Three SIM.

Reasons for replacing your SIM

There are several reasons why you may need to replace your SIM card:

Your device is lost or has been stolen

If your device is lost or stolen, please get in touch with us straight away. We’ll cancel your SIM to stop anyone else from using it and will arrange for a replacement to be sent to you.  

Important: If you’ve been the victim of a crime, call the police and get a crime reference number before doing anything else. 

If you’ve got a new device and need a different-sized SIM

Got yourself a nice new phone but need a different-sized SIM? No problem. 

Not sure which size you need? Find out on our SIM size support page.

If your SIM is damaged or faulty

If your SIM’s been damaged or isn’t working, we can replace it for you.

How to order a replacement SIM

Pay Monthly

If you have a Pay Monthly plan, you can order your SIM card replacement using:

My3

  1. Log into your My3 account with your registered email address and password 
  2. Tap More actions  
  3. Then Replace SIM 
  4. Pick a physical SIM or an eSIM and choose your replacement reason
  5. Tap Submit

The Three app

  1. Log into the Three app
  2. Tap Account 
  3. Go to Help 
  4. Tap Replace SIM  
  5. Then pick the type of SIM you need – physical or eSIM - and replacement reason 
  6. Tap Submit

Pay As You Go

To replace your Pay As You Go SIM, please get in touch with us. 

Other ways to get a replacement SIM card

You can order one by filling out our SIM replacement form. Or you can contact us, and we’ll order one for you.

Frequently asked questions

An eSIM is a virtual SIM that’s quick and easy to set up and lets you get connected immediately. And with no plastic, packaging, or postage, eSIMs are a greener choice. 

Find out if your phone can use an eSIM

If you ordered your SIM before 20:00 Monday to Thursday, it should arrive the next day. If you ordered it outside those times, it will take 2 working days to arrive.

Pay Monthly

Your replacement SIM should be active already. Put it into your phone, and it’ll immediately connect to our network. If you can see signal bars, you’ll know it’s active. You may need to turn off Wi-Fi in your phone settings to see the signal bars.  

Pay As You Go

You can activate your SIM by putting it into your phone so it can connect to our network. You’ll know it’s ready when you can see signal bars. 

Did you find this page useful?

Any feedback you have helps us make your experience better.