Gevey Plus2 Piggyback sim problem. Please help
I bought a new iPhone 3G from O2 UK two days ago, and bought a Gevey Plus2 sim to go with it. I'm originally on vodafone UK contract. I got everything working fine, incoming and outgoing calls, and got internet working by adding on a web package vodafone offers. I was able to send sms alright, as my friends told my they are able to receive them, however, i can't seem to receive any sms. I tried it with my other phone and sent an sms to my iPhone, but it just doesn't receive it. How can I solve this problem?