Don't trust Islandview properties

I was renting an apartment through Islandview properties, Lagoon Beach Cape Town. Even before I moved in, they tricked me into paying R 6000 for a bed that was only worth R 4000. When I moved out after my contract expired, they deducted money from my deposit incorrectly, claiming that it was an outstanding electricity bill. Their statements showed that nothing was outstanding, but they still refuse to refund me. They can't be trusted.