Horrible service from Natasha Herbst

I took out a lease agreement from Trafalgar just before the lockdown after I was given a run around by the agency.Then when I moved in with my sister the apartment was not ready for us,it was dirty,not fumigated and roaches were roaming around.The day that we moved in it was raining and we didn’t have electricity because the meter was not registered under our name as yet.I sent an email to Natasha Herbst the residential manager at Trafalgar which happens to be the landlord of the property complaining about the service we received and the fact that the flat has serious problems like when it rains the main bedroom gets flooded and it is causing material breach as if is damaging the furniture.so the same day we moved in the mattress got wet as the room was flooded.we have reported all the maintenance issues to the agent that was assisting us and it was escalated to Natasha but nothing has been done 2 months later.beginning of May we gave them a notice as we saw that they are not coming to the party.They never responded to our emails on time and all of sudden when we want confirmation to move out Natasha is being rude telling me that I am in breach of the contract and she will make sure I don’t get my deposit back.The agent assisting me found a person who is willing to take over the lease but Natasha Herbst is giving her a runaround as usual so that she benefits from it all.she wants to keep my deposit and then take the deposit of the lady and treat her bad like she did with us when she wants to move out.