Very Unhappy with the service from Rental Agent

I rented out my flatlet on my property from the 1st July, the tenants moved in on the 25th June 2022 which the agent (Dineo) was aware of. As this was the first time ever to rent out property, i asked the rental agent to assist me and give me advise. Not at any time did she advise me I could charge the tenants for the 5 days they moved in early. I signed a 12 month contract but after three months i gave the tenants notice as they had people visiting late over the weekends which i discussed with the agent. Their 3 children were never living with them, when the children suddenly came to live with them they never discussed having a domestic there full time. In their contract they signed for 2 adults and 3 children, no mention of a domestic/nanny was made. This too was discussed with the agent and at no point did she advise me what to do or discuss it with them. They had 2 cars that did not drive, which was mentioned in their contract and then suddenly a 3rd car was also on the property and this was also discussed with the agent. At no point did the agent mention that she will discuss this with the tenants or contact them regarding this, despite her full (12 month) commission being deducted. They moved out on the 30th September and moved their cars and last things off my property on the 1st October. They only returned my keys on the 4th October after 19:00 as they wanted a letter stating i would pay them back their full deposit. When i checked out the flatlet the evening of Wednesday 28th September i could not see anything, when my brother checked out the flatlet on Friday, 30 September he too did not see anything as all their things were in the flatlet. When I inspected the flatlet on the 5th October after work only then did I see that the place was not clean, invested with ****roaches and the carpets in the main bedroom was burnt and the carpet in the other room there was a section cut out and replaced with a similar colour, this was communicated to the agent and copied to ***. No reply to this was received. Whenever i asked the rental agent for advise she referred me to the contract, she could never explain any part of the contract. Beside all of the above I received my water and lights account on the 5th October for R10 000,00 for the month, when i called the COJ they said that the capacity of water and electricity had doubled (was abused) for the previous month. All the agent said to me is that i should have notified her earlier and she would have chatted to them. I am very unhappy with her service and it seems like she is advising the tenants but when i ask her for advise she cannot supply me with any!