Appalling service with no means of escalation

I put in a month's notice to move out of an apartment under Mafadi on 31/01/2019 to move out at the end of February 2019. I got feedback after numerous phone calls because they just do not respond to emails let alone acknowledge them. I eventually got a call from Clinton 13/02/2019 advising that he sent me forms to complete, which I did and sent back to them for processing on 18/02/2019.

I then receive an Invoice that i need to pay rent by 01/03/2019 yet my notice had been to move out 28/02/2019, I then sent an email (cant't get hold of them on the phone) to request that they amend the invoice, again I did not receive feedback nor acknowledgement.

I made numerous attempts to meet with Carol to arrange an exit inspection but she did not honour our appointments without an apology or postponement. She eventually did the inspection in my absence and there will obviously be "damages" listed that are not for the tenant's liability for which I requested a copy of the Inspection report, to date I have not received it. Numerous calls again to Clinton and Carol who are more unavailable than they are available, today being the 28th of March over 3 weeks since I moved out and I do not get feedback on what is going on and how far they are with finalising the deductions if any and ultimately the processing of my deposit which is over R5k.

I have stayed at that apartment for about 6 years and the experience was atrocious to say the least because even getting a leaking tap fixed took them more than 6 months to attend to!