Cancellation of insurance

Wow I do not believe that Miway car insurance has such bad and poor customer service. On the 13th or the 15 of July 2015 I called to cancel my insurance, my debit order with them runs on the 20th of every month. So I called the customer service and I was sent to the cancellations department , I then asked that they must cancel my insurance I was advise that I must do a 30 days notice so we agreed on that. I then told the consultant that July is the last time that you are debiting my account and we where both at the same page. The consultant advised me that my cancellation Is done and after July there will be no Debit that will be done. This month on the 20th of August 2015 Miway took an amount of R1469.22 after I having cancelled my insurance. With in just a period of 6 months I have been having problems with this insurance company and all my problems were not solved and now that I am cancelling this policy I am still having difficulties. I want my R1469.22 and part of my premium for last month because the amount was set on the pro-rata. I will never, ever , ever use this insurance company , I would not recommend any one to use this company. shame on you!!!!I want my money!!!