Been billed for internet I did not use and did not received. I am been bul**** by Homeconnect agents and they charging my for an inactive internet line

I was a Home Connect client for 14 months, my account was paid on time. My 100/100 MG line with Vumatel was now on month to month basis. I sent an email to cancel last year February and I was still expected to pay for 3 additional months. I had not paid for February and I was told that I need to pay to reactivate my line and cancel online once line was active. I had informed them that my router was broken by my brother and due to family differences I was no longer living at residence that's why I had to cancel my line. I am been charged R2934 for a service I have not used since February 2023 to May 2023.. I have received numerous unprofessional emails stating my line cannot be cancelled as they have paid Vumatel, my line has not been used since 25 January 2022. The terms of my contract are based on internet usage, no internet no payment. I am disappointed, now Home Connect has given me a bad credit record. I have escalated this matter and I am been bul**** by Homeconnect to pay for a service I have not used. I paid R779 for router as it was broken and I refuse to pay for 3 months of internet I did not use. Do not sign a contract with Homeconnect. I need them to retract the bad credit rating, they are impacting my credit score. During 14 months my internet line was paid on time and was up to date. Honestly disappointed that I'm been bul**** to pay for I service I have not used. I have emails to prove that one of support agents mentioned that they can cancel contract with a client at anytime. I have contridicting emails. I am honestly frustrated by Homeconnect and will escalate it to National Consumer Protection act.