Extreemly bad service

So getting back to this wonderful company. I gave 30 days notice on my account on 5 May 2022, which was ackownledged. Last payment went off on 7 June 2022. Payments still went through, so I asked my back to reverse the payments. 1st tjet came back saying I must pay R800, no I cancelled. Then it was R500, no I cancelled and then R300. Then they put MBD on it to phone me every day, 5 times a day for money I do not have to pay. SO THEY ***** OR TRY TO ***** TJEIT CUSTOMERS MONEY. No matter how many times I explain or block the number, tjey call again from another number. DO NOT DO BUSINESS WITH THEM, THEY ARE NOT TRUSTWORTHY AND DOES NOT CARE ABOUT THEIR CLIENTS, COULDN'T EBEN TRACK MY STILEN CAR.