Harassment

I have been harrased, I called the company to cancel my policy with them, on the 1st they couldn't debit which the next day they debited more money, they added R59 more, the agent helped me told me since I was with them from 2022 I won't be charged cancelation fee and I will have to wait for 20 working days. But to my surprise they debited again on the 8th R205, now I am getting different calls from them telling me I have an arrears of R110 but another agent said R350 but I am asking how is that possible since they debited the money that I don't even get it why. They are calling me harrasing me and sending emails. Can this company please leave me alone please. It's like they using different account department, car tracker leave me alone please.