Bad service, horrible

My car was involved in the car accident and it was written off by my insurance, I was not aware that I should have canceled my debit order, I called a call center and they told me that I was owing R700 wich I have requested the company to debit my account on August so that I could cancel their service. Last month I received a message saying that I am listed on Itc after I have paid and now there is debit order that is loaded in my account and I don't know it's for what because I paid everything that I was owing. I paid them in full.