I know this is an old post, but I thought I could help.
It appears that one used to be able to get those frequencies on any older DStv decoder, however it appears that these frequencies have changed from DVB-S, to DVB-S2, and are no longer viewable on any decoder, the SD Decoder as it's not supported, and the HD decoder locks up when scanning the transponder with the store radio channels. I currently have one of those chinese DVB-S/S2 decoders, and I have access to all the store radio stations, and more. The music played across store radio stations aren't half bad, and there's always something worth listening to. Better than most commercial radio stations by a long shot.