To add a Bolt On to your iPhone account, you need to complete this form and inform O2 of which Bolt Ons you would like added.
Additional Bolt Ons
With Discount Country, you can call abroad from the UK for less. There is just one flat rate to call overseas standard fixed-lines and mobiles. You can also send a text to an international number for the price of a standard UK text (12p). There are 10 countries to choose from:
Travelling In Europe
When travelling in Europe or Spain, receive calls for free and make calls to the UK and other included European countries for 25p/min.*