Unfair Business Practice

I was and have been a DSTV subsciber for over a year, enjoying exceptional service until late last year when I had [to] terminate my contract with them.

As per terms and conditions, I gave them a month's notice that I would no longer be requiring their services. All was well until two months later when I started receiving phone calls demanding outstanding payment from months prior!? I have been phoning adnauseum trying to get this resolved - their legal department is never available to speak to. Customer service promised to escalate and have this resolved, to no avail. Instead I am receiving incessant emails and calls from collections at Multichoice. If not resolved, I am taking matter to Ombuds!!