De*****ing the public

I've receiving messages from ONAIRTV since April requesting payment. I had to look it up, because did not know what the company does and why they want payment. The message just gives a reference number and the email details of a very suspect collections agency. I have no recollection of ever talking to them, thus I deduce that this is some kind of ********** activity which DSTV, ONAIRTV and MBD. I had a 24 month contract with DSTV, with a new decoder, which is thankfully fulfilled and I will promptly cancel it.