Log in to the iD Mobile app, go to ‘Add-ons’, click on 'Buy' and choose the add-on you want. Then click ‘Buy now’ and confirm your purchase. Your add-on will be added to your account.
Please note: Add-ons are not included in your Bill Cap. So if your Bill Cap is set at £3.00 and you buy a £3.00 add-on, you’ll still have £3.00 left on your Bill Cap. Find out more about how Bill Caps work here.
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