Johannessburg Housing Company - Refund

I vacated the prmised on November 2025 and evruthying was good. I had paid in advance for the rent and was due to get my refundd. The company doesn't want me to pay me back my adbacnced refunds, they keep on asking me to furnish the proof of payemnt (Of whcib they coud see on the system) . After everythnig was net the still no money, I called several times an dget promises that money will be be paid (this isn teh 3rd month now). Can I gte my money