Dtsv Explora Switch

I recently got a Dstv Explora decoder through Multichoice's Dpp promotion. When the Dstv installers came to my house to do the installation they found that when they opened the sealed box that the Explora Switch was not in the box. I therefore had to purchase a switch from the installers which cost me R800. I spoke to Kgomotso at Dpp and explained to her what happened. She informed me that Multichoice will have to refund me for the purchase of the Explora Switch. I e-mailed her the invoice from the installers on the 10th of March 2015. On the 12th of March i contacted Multichoice and again on the 13th of March 2015. Up until today i still haven't received any feedback from Multichoice or Dpp.