DSTV internet has bad service. Not collecting.

I have four months having subscribed to DSTV Internet, they sent a router and I used it for a month. I lost interest in the service because they charged what I can't afford for the internet service.

I canceled the service four months ago, and I sent an email to cancel, I even called their cancelation service but they havent collected the machine and they are still charging me monthly and each month they keep on increasing the charges but I don't use the machine, and this is ***** I am paying for a machine I am not using and they are not collecting. That is all a bad service.