NO SERVICE!!!!!

<p>I keep on getting missed calls but my phone didn't ring!!! I have called Vodacom evryday this week, and my problem is still not sorted. For one or other reason my phone is on 4G - and as soon as it goes to 4G then I don't receive any calls. I removed my sim, and switched of my phone, they syncronized my sim and still, no incomming calls. I have just been told that they will take 24 - 48hrs to look at my issue?? I only have a cell phone, no landlines. How will my children get hold of me in an emergency. This is unacceptable and disgusting!!!! I can't change network settings on my phone from 4G to 3G??? Vodacom you really f&^Cked up!!! please sort this urgently!!!!</p>