Group 7 realty unprofessional

I was interested in a properties listing in malvern in November 2018. I asked the agent to view the property on 1st December so that I could give notice at my current unit and then transfer the deposit etc. I was told that she was unavailable on weekends. I then asked to see the place on Monday and she was on leave. In the interim I submitted all my documents for approval and some weeks later never heard anything back. I called their offices and a lady by the name of Terry said that I should look at the place through the window or from outside but she didn't have a car so she couldn't open the unit. After my dissatisfaction with Terry's comments I spoke to the agent who then suddenly said the application had not been processed but that I could have the place if I paid the holding deposit. I transferred an amount of 1500 because she promised she would let me view the unit in the week of the 18 Dec 2018. She never held her end of the agreement and come the 27th December was the first time I heard back. She said she was signing leases on the 29th but their offices are closed and she is on leave etc. Eventually come the 2nd of Jan I saw the unit for the first time. She never brought any documents for me to sign and had insisted both my husband and I be present for the signing. We took time away from work to drive from Pmb to durban to only then find out there was an additional 200 for parking to be paid. She said that the full deposit must be paid and then only will she sign the lease so to come back on Saturday. She then went on to push me to make a decision about the place by 1pm though I said I'll get back to her later that day. She has now said she's not giving me the holding deposit. This money I transferred in good faith but the agency has not been professional or kept to their side of any agreement. She then sent me several inappropriate messages and even made derogatory comments. I am shocked. When I has asked for details of an owner I was told there is nobody to speak to.