*****ulent renewal of contract by Vodacom official *****ulent billings

So I had a 3year wifi contract with Vodacom for the amount of 349per month, the premiums kept increasing without me being notified, until I was paying R452 that I didn't agree to, I couldn't wait for the term to finish, end May 2026, I went to the nearest Vodacom to inform them about my intention to cancel my contract, to my surprise I was informed that I cannot be able to terminate the contract because I have just renewed my contract for another two years, they told me about the store that did that without my knowledge , I wrote to Vodacom Customer care, they told me the same thing and informed me that they won't be able to assist me because it was actioned to that particular store and that I must visit the store, mind you I have long time moved from the area and I'm now 35km away from the area where Vodacom is expecting me to travel up and down, I requested their ***** department contact details and I wrote to them, they told me to send them my affidavit, certified copy of my ID and sign the ID copy as well, they informed me that they will investigate the matter, after a week I received a call from that particular store and the guy told me to come to their store and collect my router, can you imagine the nerve, as if he doesn't see anything wrong with what he did, I asked him how did he renew my contract without me, how did he know my financial situation, was he aware that what he just did he committed *****ulent activity, he told me that he had been trying to get hold of me and he was failing, I told him that I don't care what his reasons were but nothing compelled him to commit *****, I told him that he must cancell his *****ulent activity and also cancel the existing contract because it was ending anyway, between 18 to 22June they stopped their internet and I suspected that the contract was canceled indeed, I phone their call center again to verify, I was told it was still active but the guy assisted me in canceling it, to my suprise they continued to bill my account in July I reversed it, in August they did the same and this time doubled it, I reversed it again, and I wrote to their billing department asking about the billing because the contract didn't just end, i also canceled it,I haven't received any response from them, the only thing they do they respond by black listing my name on Trans union, please help.