Ruben is bad like MTN coverage

I called *** following up with a call that I logged with MTN Coverage on the 18th March 2015. Firstly as I was about to give Ruben my call reference number - He (Ruben) put down the phone on me. I called again, luckily the line put me back on Ruben's line. Secondly I asked him a question about what is the turn around time regarding calls - Ruben said that he does not know. I asked again when will this be resolved. I don't know was the response I got from Ruben. How can I call regarding a serious issue and your employee says he does not know? He said I was debating when I was asking what's the turn around times. I need to know the turn around time cause me (MTN user) & (MTN users) in my neighbourhood are the people struggling badly with MTN coverage. I cant use my phone at all. And when I asked question I am bul**** and forced to take I don't know answer, I don't know answer is not acceptable at all. Ruben has a stinking and impatient attitude. I am also surprised at how a person like Ruben can work for MTN. He is not a professional and he is arrogant to say least. I am customer who is not happy with MTN coverage, and also with your employee Ruben. Maybe its time to switch.