Anyone here deal in Mobile Phone Contracts?

[2 5HAN]

Currently on T-Mobile
Fed up with lack of service in my area.

Ideally would like to go to Vodaphone or O2

5 Users
3000 - 3500 mins
750 - texts

Only good thing that we have with T-Mobile is inclusive mimutes to Spain, France and America
Ideally would like keep that as we are often travelling and have Foreign Sim Cards so it makes for cheaper contact with each other.

Any help appreciated.