First week in flat with no electricity

I signed a rental contract with Huurkor in which it states that the apartment I am renting is fitted with a prepaid electricity meter. This is not the case. In fact, the electricity has been disconnected for non payment of a previous tenant's bill of R3800 (not exorbitant by any stretch of the imagination). After having phoned them several times a day for a full week I am typing this in the dark. My food is rotting in the fridge, I cannot bath, cook, wash clothes or work in these conditions. They seem surprisingly unconcerned about this.