Vodacom is still ***********!

On 5 July 2018 I app**** for a Vodacom contract. The deal I app**** for a 10GB data price plan topup @ R249 per month. A while after Vodacom contacted me and told me the router that comes with the deal I app**** for was out of stock, but they can give the same deal, just with another router. I accepted that deal. End of September I noticed an amount of over R4000 deducted from my bank account by Vodacom. After enquiring about this demand, I was informed that the contract I was signed up on was an open line and not a topup plan (as I was led to believe), and that I had used out of bundle data amounting to that amount. I disputed this, saying it was not the product that I bought from them and that I shouldn't be held accountable for the outstanding amount, as the contract I app**** for, was supposed to stop once the data ran out. Vodacom then admitted they were in the wrong and I didn't have to pay the outstanding amount of over R4000. They also informed me that there is now another amount outstanding for out of bundle rates used of over R1700. And even though they admit it was their mistake, I still have to pay the outstanding amount. I logged another service request to dispute this amount - because the contract I app**** for still had to stop once I used the data bundle up. They logged the service request and told be they would call be back the following week - I never received any feedback on that service request. I then logged a complaint here, and was contacted by a consultant saying they would log another request to the "back office" and get back to me - they didn't. It is now another 2 months later and when I opened my statement and invoice that was emailed to me they *****ed my contract up even further! According to my statement I now owe them R2542.00 - which seems impossible as I've hardly used the connection for fear of getting a bill like this again. And not only that my contract has at long last been upgraded to a top up plan for which I now pay R383. 00 per month - still not the R249.00 that was agreed upon when the sale was made. No one seems to care that they did not give the product that I was under the impression I bought - according to me that is *****. I am now stuck in a contract that I DID NOT apply for, and owe money for data that I was not suppose to have used if they had given me the contract that I app**** for in the first place! No one at Vodacom seems to care all they want is their ********** money. I have been a Vodacom customer for many years and never have I received such awful service from them. Vodacom admitted that they were wrong, but I am still being held accountable for their mistakes - how is that fair? I've been struggling with this contract since August 2018, and every time I try to fix it, they ***** it up even more! Since no one at Vodacom is competent enough to give me the product they sold me, I expect them to cancel this contract at no extra cost to me, so that I can actually find a service provider that provide what they promise.