DSTV supplier Radio Sonic no stock bad attitude

I phoned Multichoice on Saturday the 4th of April, they told me to take my HD PVR decoder to Radio Sonic Klerksdorp (the only Multichoice dealer in Klerksdorp), and the Radio Sonic was closed. I have been phoning Radio Sonic since yesterday and followed up today, they don't have any stock to replace my decoder and they don't know when they will have stock. How is that that the ONLY SUPPLIER IN KLERKSDORP AND POTCHEFSTROOM don't have stock. The people at Radio Sonic have a bad attitude, they just tell the clients if they want a decoder that they must drive through to Potchefstroom to go and see if they can exchange the decoder. THIS IS UNACCEPTABLE....HOW CAN THE ONLY SUPPLIER IN THE NORTH WEST PROVINCE DON'T HAVE STOCK. I PAY INSURANCE ON MY DECODER AND I PAY A MONTHLY PREMIUM SUBSCRIPTION TO MULTICHOICE, EVERY MONTH....NO LATE PAYMENT EVER, NO SUBSCRIPTION DISCONNECTED.....WHY CAN'T I JUST GET A NEW DECODER. THEY ALSO SAY I CAN ONLY EXCHANGE IT FOR ANOTHER HD PVR DECODER AND NOT A EXPLORER DECODER...WHY IS THAT. THIS IS REALLY NOT THE SERVICE THAT I EXPECTED FROM MULTICHOICE CONSIDERING WHAT WE PAY. PLEASE ASSIST URGENTLY