Service suspension

I've had my contract for a few months now and I have always paid the full balance so in turn I expect nothing but the best service from mtn today I find out my service has been suspended and I tried numerous times to contact the call center and what do you know I don't get through to any agents. What do these people take me for. They take my money and give me ****ty service. I know I haven't exceeded any monthly limits so I would really know what ****ty excuse they have for me if I ever get a response from mtn. I am not going to pay any extra fees because I owe nothing.if this matter is not resolved I will go to every publication that is willing to hear my story.