It will just be between myself and my girlfriend, not 4 people, as stated on the website. It seems like a stupid question, but all the material on the site refers to free unlim calls between yourself and 3 others, not 'up to 3 others'...so is a group of just 2 ok to 'bolt' this extra on? It's the most important consideration in taking the contract.... Thanks!
I'm in the UK, if that makes any difference.....