Vodacom *****s again

I recently was billed R746.38, only to see that I was charged an extra R200 and something for 75% discount on data billing, which i remember very clearly when the sales consultant called me offering me this service I was very clear that I am not interested, why then do I get charged for something I did not agree to, I had previous ********** encounters whereby Vodacom was involved and really hoped that you guys were passed that and decided to give you'll another chance however Vodacom has proved me wrong once again. I tried calling to get the matter resolved waited twice for an hour because you'll are experiencing high call volumes so guess I am not the only client you'll tried to ***** money from... never the less I eventually got to speak to a Human named Lungile who cut the call on me. I want my refund and I want to cancel all services with you people as you'll can ***** and lie very easily but try getting your money back it becomes a problem.