Complaint

My mother took insurance for her house and car with IWIZE a couple of years ago then later decided to cancel it because she someone she knows was complaining that there *****ed her. She cancelled about two years ago no in July 2022 they come back after two years claiming she owes them because she reversed money before she cancelled and they debited a sum of R708 on her account and when she called they said they will continue to debit and if they dont get the money they are going to add R50. I just want to understand what are they debiting for because she doesn't owe then anything, if and when she decides to cancel or reverse it's up to her. Why are they coming back after two years?