incompetance cost me to get an external contracter for R450

I brought my hd PVR in to dstv customer center on 21/01/2020 for faulty hard drive. Opted for a swap machine for R600. They set it up there, I got home connected but had issues I couldn't resolve. Had to get 'District Dish' in to assist. They confirmed the pvr was incorrectly set up. It had to be set up as extra view HD PVR. Had to then contact DSTV again to redo what they should have done when I WAS THERE. This cost me now an extra R450 for the services of an extra contractor which would have been uneccessary had DSTV done their job properly the first time. My ID ***. I should be credited this amount on my next billing as a premium user