Incompetence: Migration of a cellphone number to home internet

One of Vodacom subsidiaries contacted me to offer me more data for the amount that I am paying. He ended up migrating my cellphone number to home internet and now I cannot receive or make calls on this number. My monthly subscription has doubled from R950 to R2 111. I have called Vodacom several times regarding this matter and they are failing to resolve it. I am gonna have to pay R2 111 for something that I cannot use, just because their subsidiaries are *********** and Vodacom is not taking responsibility. It's money I don't have down the drain.