Horrible customer service, false advertising & basically *****ing from clients?

I am utterly disgusted by the lack of service that I have received from vodacom home fibre. I Submitted a subscription dispute on the 19th Jan 2018. when I signed up for the contract in 2017 I was told the subscription will R449 for a 100gig 4 mbps. To my surprise when my first invoice came I am suddenly now being charged R599 for the same benefits. Been calling vodacom fibre weekly to get feed back or solution to this but all efforts seem to be hitting a brick wall. While they keep over charging me and in simple term *****ing from me. For the last 3 months they keep deducting R599 without fail & clearly not interested resolving matter. They keep saying its been escalated to the sales team & someone will contact me ? no one has ever contacted me. I am so fed up come take your unit out of my house with immediate effect & i will no longer be renewing my other 2 contracts that I have with you. I dont appreciate being taken advantage of.