No network for 2days now! No call centre! No help!

My MTN number has not had network coverage for over 24 hours! I use a Samsung S4 and when I try search for network, it says MTN is available please try again later. I have not moved my sim card to another phone or anything out of the ordinary. <br> <br> I use this phone for business purposes and I have not been able to receive client calls for 2 days!!!<br> Your call centre system is horrible! When I call 083173 I have to first select option 2, then go back to the main menu just to get an option to speak to a consultant?! Of the 12 times I have called that number, I have only gotten through to a consultant twice. All the other times (including now) I get the voice that says all the lines are currently busy please call again later *call ended*<br> <br> The first consultant asked me to remove my sim card for 5 mins and reboot, that did not work. The second consultant asked me to call Network Coverage on ***. When I call that number it just says your office hours are 8 to 5 Mon to Fri then hangs up, even though I'm calling between 8am to 5pm midweek!<br> <br> I am beyond frustrated and need this resolved urgently!<br> <br> MTN Complaints reference number - REQ:***<br> <br>