MTN - KINGS OF SPAMING!

IT is clearly evident that MTN have lost control over what they send out. I constantly receive SMS's advising that my data is being charged at out of bundle rates or finished when i clearly have enough data available. ill even get these notifications when on my WIFI at home. i have a top up contract and from time to time need to add airtime. ill have R200 available and many times, when trying to make a call i'll be advised that i do not have enough airtime to make the call. it is frustrating on another level!! the amount of spam i receive when loading data and airtime absolutely kills me!! i don't need all of this *******. i only need what i request! i have used all \service providers"available and they seem to all be equally poor. another \""proudly South African\"" company..."""