Problem with bill again

My billing for March is incorrect once again. Why do I have to micro-manage you guys? This is the 5th month in a row that you have messed up my bill and I have to spend hours with *********** people to try and sort the problem out. I, the Customer, have to keep following up and make sure the problem is sorted. And at the end of the day, after fighting and wasting my time, no one ever compensates for any of the mistakes made. Usually if you get bad food at a restaurant, they apologize and offer to fix the problem by overcompensating for lack of service and product delivery. Not Vodacom, no. You guys think we need you. Think again. I'm cancelling my contract.