Vodacom Westwood not Reliable

Last year in November I went to Vodacom Westwood mall to to a sim swap which my pocket router was ****** fair enough that was sorted. Then the the lady called Sharifa told about the special of getting a router I was interested then I said I want it, she told me it's black Friday special I will still be paying the same amount of which I was paying on my contract which was R299 per month. Because I was up for updrade since this person is the same one that was assisting me with the sim swap I had no idea that she was selling me a wrong deal. the sim swap she had done on the card stopped working I had no internet connection, I went and I told her my sim stopped working, she looked at her system she said it's showing it's working. A week pass still no connection the day came to go and collect my upgrade router only to find out the lady gave me a house router not a pocket router. I left the router in the store asked them to cancel the contract. Up until today Vodacom is still debating my money every month. I have spoken to their managent in the store, they keep referring me to different manager, when I come to the store I keep finding new manager of which I must keep explaining my story again and again even the owner of that shop Junaid knows about this problem. On the 27 of Feb 2024 they deducted R698. 99 when I went to the store I was told to give them 48 hours they will sort it out Junaid himself on the phone told the manager to please give them 48 hours mind you these people have been giving me the running from November we are in March now and still they will deduct because they haven't came back to me when I they canceling the contract and when I they refunding me from December. One mananger even told he doesn't even know what to do now, he tried everything sent all my paper work for my contract to be canceled, he told me I must try on my side to sort it out myself. I called Vodacom customer service they told me they can't do anything for me since the store made a mess they need to fix it on their side. Please help me Hello Peter this is affecting my credit score and I don't see what is so hard for Vodacom to cancel a contract of which their staff made a huge mess now in the process I'm paying for it. I have nothing in my house that belong to vodacom so they have no right to help themselves with my money of which I work hard for. Thank you