ADT IS TAKING MY MONEY

In July 2015 I called to cancel my ADT Contract. I was told that a settlement had to be paid, and one months 'penalty' fee. So i accepted, Paid a settlement of R2080.00. Then every month after that ( It is now November) I still recieve deductions from my account. After the deduction in September I immediately phoned to speak to Accounts Dept. They asked that I forward the POP. which I did.. Needles to say I got no response. Then I tried calling again, and everytime, someone says forward the POP. I never get a reply. I am beyond frustrated. I have tried EVERYTHING. Emails, Calls, Facebook and now Hellopeter. Can someone please help sort this out. Im furious!!! This is pathetic. I want my money back, and I want to stop paying for a service I have cancelled. Thanks.