Cancelation not done when requested and billing

I Have had just about enough of the ********** service from ADT, its extremely poor and pathetic hence my reason to cancel!. you people are still sending me bills and charging me an annual radio fee when i specifically asked you to cancel upon termination of my contract being the 6th January 2016.<br> i have called in numerous times to get help and have my calls continuously dropped in my ear whilst being asked to hold.<br> what kind of service is this????<br> <br> i expect a prompt response in this matter!<br> <br> Regards,<br> Claudelle Pillay