Cancellation - No word yet!

Good day<br> I went to telkom to cancel my account(Adsl line and telephone line - residential)<br> They gave me a form to fill in and email it to cancellation services, i did so at the begining of this month.<br> The reason why i need to cancel everything is because im moving out at the end of Dec 15, so I need it to be cancelled before then, i cant be still be paying for services that i wont be able to use anymore.<br> The lady told me to email the cancellation request form and after that i will receive a \final invoice".<br> I did receive a invoice but it said nothing about final invoice. So it seems that i will still be paying for next month"