Casa Del Sol

Management not fixing things in my apartment, Which I need for my Multiple sclerosis.
I've called Repeatedly and spoke with both managers in person and on the phone about my AC not working Correctly. I had to stop maintenance men riding around my unit and had him to look at it, his words were it needs new pipes and a new filter. He never came back but left the metal bar on my counter. It's been 2 years and I still don't have a screen on my sliding glass door. I get told they will order one but I'm still waiting. My dishwasher doesn't wash my dishes well also. I have to run the dishwasher up to 3 times which cost money. I pay my rent on time but I don't get anything fixed. I don't feel safe here anymore. I'm running fans and I just want to leave this place, my body can't take stress and heat and I'm getting that staying here. Please help!

My name is ***, yesterday I received a letter saying that I have been sent to collect because I owe money from the rent to casa del sol, I just spoke with the collection agency and they say to speak to casa del sol, I want to know what is the reason why sent me to collect, my contract ended on October 31, 2018, I paid the last month of that contract (I have the confirmation), and I left the apartment on September 25 and that That same day I left the keys in his office, prior to this I had already let him know, in the month of July, that I would leave the apartment, the apartment was in good condition, (I have photos and video), and Casa del Sol never let me returned my $ 450 that they have from my deposit