Vodacom ****med me

I have a contract with Vodacom for the past 3 years and upon my upgrade I was given a call from a consultant if I would like to continue with my upgrade and to my surprise there was a data simcard that existed in my contract I have never received and I have been paying for the past three years then I went ahead to complain at Vodacom to make them aware that I have never received the simcard and at the same time needed wanted to inform them about my upgrade cancellation but one of the consultants lodged a complaint on my behalf and insisted that I should consider the upgrade and told me Vodacom will come back to me and deduct the amount of money I have been paying for on the simcard I have never used which was R170 a month which accumulated to R6120 in 3 years. Vodacom called me and informed me that it was combo in my contract then I informed the consultant that I have never received the simcard and I have never used it and that was the end of the call and never heard from them and all I got was an sms saying case resolved with a reference number. I proceeded with my upgrade on the current number I'm using and the consultant did not inform me that he was upgrading that simcard as well after informing him about the issue with Vodacom, I found out about it as I looked at my invoices then I went to Vodacom to lodge a complaint again, no phone call was made then I called the call centre to follow up at my expense since they are useless and don't care then the consultant told me the matter has been escalated to the ***** department and mentioned that they should call me around the 3rd of or 5th of November and she further mentioned that I shouldn't call Vodacom or go to the branch assuring me that Vodacom will call me. Today marks the 15th of November and no call was made, I'm struggling and stressed as hell as I do need the money for other purposes. The freaken consultant did not bother to ask me if I want to upgrade the stupid data simcard but he ****en went ahead and did it without my concern, I'm sick and tired honestly it's not fair...he lodged my complaint and still went behind my back to upgrade the non existent simcard