Getting Billed for canceled contract

<p>I had a 24 month telkom 3G (10Gb + 10Gb) contract which expired in February 2016. Therefore, being on a month-to-month after Feb. I have however decided to cancel the service in Ausgust 2016. I called the call center and they adviced me to submit a signed cancelation form with a copy of my ID to the cancelation department - which I did and submitted it on 20 Auhust 2016. Because I had to provide them with a month's notice I accept that I still had to pay for September 2016 but still kept on recieving invoices for October, November nad now..... IT IS DECEMBER already !!! I have called the call center a number of times to CANCEL the service and every time they say it has been cancled on their side. Now I ask you....why do they still send me an invoice if the service is canceled ????????? I really cannot complain about Telkom's service- BECAUSE THERE IS NOT SERVICE !!! I hope you can clearly see my frustration in this email with Telkom. I will not recomend Telkom to Anyone. </p> <p> </p>