Disgusting service from Protea Meters

I would like to use this platform to lay a complaint against Protea Metering. When we moved into our apartment, we had to pay a deposit of R1000 for the connection of the water and electricity, which is refundable when you move out. We moved out of the apartment in December 2018 and notified Protea Metering about this, asking for our deposit back as we are no longer using their services. They sent us a form to fill in for the refund to happen, but since then, they haven’t said anything or refunded us. We’ve been trying to communicate with them and haven’t received any feedback. This is terrible service from Protea Metering. Why are they still holding our deposit if we are no longer utilizing their services? And the fact that nobody is saying anything from their side is disgusting!!! This is not the way to conduct business or to treat consumers for that matter!!! I did inform Protea Meters that if they do not do anything I will take this matter further, so this is the second step. Should nothing still be done, I will take more drastic measures.