Multichoice charge you even once you Cancell

My wife and myself cancelled our DSTV last year October and today 26/09/2015 we are selling the decoder so we called Multichoice to pay the R8 we where listed on ITC for without us being informed of it, and guess what they now say we owe them R98 apparently for Insurance, surely when I cancell they cancell everything, I think they are heamoraging clients and therefore need to ***** any client who has left them just to stay afloat I cannot wait for Netflix to come to south africa, My wife spoke to Sugudi Rapodile this morning and he said the accounts get sent to the decoder, guess what idiots I dont have dstv I cancelled it how am I supposed to know that I owed you R8 if it gets sent to the decoder I dont use anymore what a joke listed for R8 without being notified and the charged for a service I dont use.