Vodacom is useless

So I reccently posted of where Vodacom agents lie over the phone or withold information just to take up subscribtions. In the end i cancelled my airtime and just wanted the data bundle to which they did not tell me they are dependant on each other. I even paid the extra fees in december. January i get billed for the data but 1 Feb no data. I was upset thats when i found out. Now the tell me my number is prepaid. Fine i wanted nothing to do with vodacom anymore. Now i get another invoice saying once off airtime. Why would i be billed when my contracted ended and i got no airtime. Vodacom used to be so nice I have been with the for over a decade and this is the krap they pull on clients.