Supersonic Clifton DSTV and internet

We have a holiday apartment in Clifton that’s only used once a year. We have 14 decoders in this apartment and pay DSTV every month. Supersonic provides the fibre for Dstv and internet in one of our other apartments. During loadshedding all services goes offline. Their inverter doesn’t last. They provide internet and Dstv connection tk 300 clients and in December they can’t keep it online, in the busiest time of year. How can they not replace their inverter after a month if issues? Can we help get it fixed? Can we claim our Dstv fees of around R7009 pm from you? What’s going on?