MIS-SELLING and violation of client's right

Through the bad experience I am facing with this service provider they don't even deserve this one star I've given them. I called for a data only upgrade and it end up to open what nonsense of theirs.No as I speak I can't even buy airtime for my SIM daily my invoice tops up without knowing what to do when I call their customer service line they can't resolve what they've done to my SIM and I must suffer by paying for their mess which I clearly stated that I want data and nothing else. Previously my R55 airtime was being dedicated for no reason after I call them they reverse it back . So what kind of service provider is this that when you interact with you end up having unnecessary headaches. I've had enough with this Vodacom and it's agent who want to close their targets by subscribing things that clients doesn't need, it is MIS-SELLING and its against sales standards. Every client has the right to get what they subscribed for, so my rights has been violated. Once I am done with this query I am going to cut this SIM and Vodacom out of my life for good,even if it is the last service provider standing I will never subscribe for it I'd rather use my phone without a SIM card