Delay in paying deposit

My lease expired on the 30th April 2022. The agent said it was their birthday on the 30th and asked if I could move out and have inspection done on the 29th. That was convenient so I agreed. On the 29th, they send a message saying they are ill and would send their colleague for the inspection. They did and everything was signed off as good. The colleague (Darren) said my agent would send me a copy of the inspection done. I did not received but i trusted them at that time so there were no issues. Everything was intact based on inspection and clarification from the colleague that was sent. 29th was a Friday and they were ill so i am expecting my copy the following week. No email or update. I send them a message on the 4th of May asking for deposit and how long it would take. They say they would double check and get back to me. Its Rawson Rentals so i am relaxed.

I also checked online and information says i can give at least 14 days as the lease says i should get my deposit back after inspection and refers to the SA act. Another reason i am relaxed as there were no issues raised during inspection.

Its 18th of May today, i reach out to agent to ask for deposit and update. I also send an email as I am now getting suspicious, plus it doesn't seem professional. They respond in a voice note saying there is a problem with the bathroom ceiling (there is a mould) and there is a light bulb that was out. As at when i was leaving, all the bulbs were intact and working. This is day 19. Why are you telling about a bulb now. Do you understand anything could have happened between the morning of the 29th when i moved out and today. This is 19 days. There was a mould when i moved in which i pointed out to the agent (Sive N) that handed over the house. They made it sound like it was permanent and i had no problems with it. I cleaned the apartment when i was leaving and steamed as instructed. Why is the agent asking me to pay for mould and bulb 19 days after i have moved out? Why have they not sent my inspection form? If the agent that inspected on the 29th of May did not see or mention the mould, why should i pay for this? This is totally unacceptable, shocking and **********. A mould is not something that should be missed by an inspection agent so why am i paying for something i did not put there.