@kev: The thing I donīt really understand is - why can they change your contract that easily? I never heard that someone can change the conditions - at least here in Germany it is the thing, that they can only do this when you ne to renew your contract or when it is going to stop - itīs not possible during the running time of the contract....
Well, for me, I was really down with my mobile during the last months. Only paid like 10 - but now it is going up again

Normally pay around 30 - itīs okay for me
