*****ulent activity with Vodacom

I have a problem with vodacom I had a fibre installed back in 2021 and i was a student, a sales agent came to my apartment in Pretoria west where i used to stay and signed me up for the service, i was told it is a month to month service not a contract, now when i stopped paying as i know that if i dont pay it up the service for that month wont be given, that is when i was told it is a 24 month contract and as a student who doesn't work i know that a student cant be given a contract. Now they are telling me in 2023 that i was owing 14000 i tried making an arrangement to pay 650 every month but they are not updating that im paying on my clear score and to top it off they debit R1044.99 on the 27th of December without getting any consent from me please do help me as i am being *****ed right now