RCM refusing to give deposit back!!!!

Hello Peter, I need assistance with getting my deposit back from RCM Letting. I have been leasing their property for 14 months. On arrival at the property, it was filthy with ****roaches all over. The place was not painted and cleaned it myself and bought ****roach NuPro Aerosol myself at Chamberlain. Their utility bill usually comes on the 1st of each month and it has never been more than R300 a month. Now on exit they claim that they haven't received and need to withhold R500. On exit they want me to pay for a pan that I didn't find there and shower door that was in a condition I found it in which they never even told me was faulty. The 2 consultants who did inspection with me never told me about the shower door when I moved in and moved out and now they want me to pay for something they never maintained before I moved in. They want me to paint their walls which were never painted in the first place. No one is even bothered to give me a call instead Ronel keeps taking me from pillar to post when I want my money. Please stop these thieves!!!