MTN poor customer service

Mtn advertise a product but trying to get information from them on that product seems to be impossible. Phoning the 135 customer care line turns out to be a run around. Giving other numbers to contact just another dead end. The local shop say sorry they cant help please phone customer care. Write a email only to get one back to say please source information over the website which doesnt have the answers I'm looking for. Consider moving my business to MTN but with service like this I wil refrain.