Lack of help and after sale service

I'm really irritated by the vodacom call centre which is not help full none what so ever. I called vodacom this evening trying to find out how I'm subscribed to a monthly data charge when i don't recall subscribing to it, that was explained but i found weird that there were no messages from other months notifying me that R99 has been deducted from my air time until today when i got the message that it has been deducted. No to make it worse i had to deal with a supervisor that was clearly not understanding my frustrations as a vodacom customer. Only after i called Vodacom that as soon as I'm hang up on the lady (Simphiwe) that i get a text that tells me that i can unsubscribe from the service. Why didn't i get this message all these months when my airtime was being converted into data. This is really pathetic coming from such a big network company!!!!!!