Useless at solving a problem and no customer service!!!

After several phone calls i was being told different things all the time... Running up and down to a shop for airtime to buy data... but when loading the airtime and trying to purchase the airtime , i am told i do not have enough airtime and i need to recharge again. Over R200 worth of airtime was bought to purchase a R99 2GB data bundle for 1 week... and im being told that my apps are open in the background and im using the internet thats why my airtime is vanishing... what a load of BS. My phones apps were not running in the background and my apps were not updating because they need to ask for permission and only update with wifi and nor was i on the internet ...because i was trying for over a hour to purchase data to use the internet. MTN is the most expensive network and the most useless, no customer service at all beacuse if there was my problem and everyone eles problems would be resolved... they have no way of treating there loyal customers and never have a solution to any problem... Its about time i change my networ****!!