All our plans come with unlimited calls and texts to standard UK landlines, freephone numbers and standard UK mobiles.

Standard UK landlines start with 01, 02 and 03, freephone numbers start with 080 and standard UK mobile numbers start with 07. 

Calls to services numbers are chargeable, so you'll need to buy an out of plan add-on before dialling any numbers that start with 084 or 087, plus any non-emergency numbers like 101.

How to get an add-on

Adding credit to your SMARTY balance is very straightforward. Either use the link in the notification text message, go to our app or log in online at, log in to your SMARTY dashboard, click on ‘Buy out of plan add-on’ and follow the instructions. 

You need to be logged in for this link to jump directly to your dashboard

You can also buy an add-on through our SMARTY App, by going to the Dashboard screen and selecting Add-ons at the top of the page.

You have the choice of buying an add-on worth £5, £10 or £15.

What happens to an out of plan add-on if you leave SMARTY?

If you're looking to leave SMARTY and you've still got unused credit from an add-on, we won't be able to give you a refund.

However, our add-ons never expire so you can use them at any time. 

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