Mnet is muted again

<p> ref ********** 7/I43 </p> <p>Too many times to mention I have no sound on my mnet decoder.Everytime I called I get told that the problem is been escalated . That does not help me with the problem at hand.</p> <p>I pay my full instalment at the end of the month and that includes mnet with sound every day. So the question is now if my instalments is going to be pro rata for the days I do not have sound ?</p>