Help X10 not receiving messages on three

[rep1icant]

First of sorry if i posted this in the wrong place... forum n00b here...

Im having a difficulty getting texts on my x10... it is branded orange but is unlocked and "working" on three uk. i can surf the net on it (i added a apn) and send and receive calls... again just not getting any texts. At one point i did and it was when 3 told me to reboot the phone to finish the process and after reboot hey presto! *nothing.... I can send texts on three and other sims work fine... any suggestions?

EDIT: Can't receive calls either..... when you phone it is says the number is not recognized.

 

[CPlumb]

Perhaps your SIM card (if your network provider runs off them) is damaged and the phone is struggling to read it. I would recommend getting a new SIM and popping it in, that should fix it.