Poor MTN service!!!

This is our second review regarding MTN's poor service. They did not respond to our 1st review. We want to know why not. What are you hiding? All we want is a break down of our data usage. After spending a long time on the phone we were told they will email it to us. It never happened. So we went to our nearest MTN's outlet and even they got no answer's after being on the phone for over an hour. Where did 110 gigs go in 9 days. Of those 9 days I worked 5 days. I'm a nurse so I work 12 hour shifts and we have no wifi coverage at work. When I get home im on the internet for about an 1hr 30mins. Where did 110 gigs go. I'm waiting for your response.