The majority of calls to me go straight to voicemail. At my end, the phone doesn’t ring, and I immediately get an SMS to tell me that I have a missed call.

I’ve tried dialling 61*12330# as per the advice on 

, but I get a ‘phone not registered on network’ message. I can, however, phone my wife’s mobile.

I’ve tried the live support chat 4 or 5 times since last night but can’t get through to an agent - can somebody help, please?