Product: Debt collection

I was afforded the opportunity to lease a XXXX bedroom XXXX bathroom apartment at the XXXX XXXX XXXX XX/XX/XXXX. My lease was ending so I went to speak with the leasing manager XXXX XXXX about the bad conditions of my unit and possibly moving to a new unit when I sign my lease, She informed me that the rent will increase XXXX dollars if I resign my lease and that to move units I will have to pay {$500.00}. After, she provided me that information, I informed her I will be moving out and my lease ends XX/XX/XXXX. She provided me a paper and told me to write a notice of intent to move. I signed and dated the letter. I told her my lease is up XX/XX/XXXX and I want to know what I need to do to get my deposit back. She said just clean up the unit, make sure nothings left behind and once we receive the keys I will inspect the unit. I asked her if it will be ok for me to turn the keys in Saturday XX/XX/XXXX. She stated that is fine. XX/XX/XXXX after moving my apartment the day before with my family, I returned with my family and we finished cleaning the unit. We went to the leasing office to do the move out inspection and they were closed. So my mother provided me an envelope to put the keys in, instructed me to write my unit number/ name/ date/ attn to : XXXX XXXX XXXX. I completed the task and my mother dropped of the key. 
The following Monday- Thursday I called the apartment complex in between work to get confirmation they received the key and left numerous voicemails. The following week I did the ssme thing until finally I spoke with XXXX and she confirmed they receivedthe keys the prior week and I had to wait until they got to my unit to do a move out inspection. I aksed if she had a timeframe of when it will be completed. She said she did not know but she will call me once they have completed the inspection and she doubted I was getting my security deposit back. I rebutteled and asked her, if you haven't inspected my unit, how would you know I am not getting my deposit back? She then stated, well because I know because I walked the unit. So, I restated to her what she informed me of and then followed up with when will I get the statement of the charges because I will be disputing and Im going to file a complaint with the Attorney General. My unit was left better than when I moved in. 

So, then I get a notice from National Credit System stating they are collecting XXXX in damages and unit abandonment charges. I call the collection agency and asked for a copy of the itemized list of the damages that I never received and was provided an email. They never provide me the itemized list of the damages they are applying to my credit or any proof of these charges. She provided me a website to dispute the charges. I waited for the email and it never came. In XXXX my mother loaned me her vehicle and I went to the XXXX XXXX XXXX office to obtain proof of the damage, the rental abandonment, and an itemized list of the charges. The leasing agent was unable to provide me the itemized list but she provided me a ledger. It states that on XX/XX/XXXX they charges me {$450.00} for rent, what? Wow, never knew or was informed that I would be charged for returning my key XX/XX/XXXX XXXX for a day. Then XX/XX/XXXX they list damages in the amount of {$3400.00} This colelction has financially impacted my family and I have file a complaint with the Attorney General of Texas and I am moving to the XXXX XXXX XXXX next. 

I am not a victim or an XXXX XXXX woman. I know my rights and I know when you treat people good favor always follows.