Product: Debt collection

On XX/XX/XXXX I Move out of XXXX XXXX XXXX @ XXXX in the morning. I left the keys to the unit and garage remote in side of the property before leaving there was no Damages done to the unit or property. I clean my unit from top to bottom No trash or furniture was left behind. I left XXXX XXXX XXXX on good terms. 


I reach out to the property manager XXXX over at XXXX XXXX XXXX on XX/XX/XXXX i still havent receive my security deposit {$530.00} from them since I move out over 2 in A half months ago. XXXX told me she will follow up on it XXXX got back with me on XX/XX/XXXX with the status of my security deposit she told me I should be expecting it by mail to my new address on XX/XX/XXXX Before ever receiving my security Deposit {$530.00} And 6 days After I already move out of the unit XXXX the property manager over at XXXX XXXX XXXX ask me if I can leave them a 5star review on XXXX XX/XX/XXXX I did just that She then said to me You Rock XXXX she wish me the best of luck in my new Endeavor and you will be miss at XXXX On XX/XX/XXXX I fill out a rental application for a house that I like for me and my children. I was told My application was denied for the that home because I had a outstanding payment to my previous landlord property over at XXXX XXXX XXXX in the amount of {$530.00} I was devastated To find out they will do me like this after waiting 3months for my security deposit. so I immediately started reaching out to XXXX and their creditor National credit system on XX/XX/XXXX I spoke to XXXX over at XXXX  XXXX which is XXXX assistant because XXXX was on vacation. XXXX was unable to tell me the reason why they put this on my credit. XXXX also inform me she was unable to help me with anything else because she dont have the clearance to do so. XXXX then gave me the customer service email to speak to somebody higher and that my have clearance to fix the situation On XX/XX/XXXX I email XXXX XXXX HR  customer service letting them know this is a false allegations this is a serious matter which is affecting my rental history I demand someone to reach back out to me I left my contact information. 

On XX/XX/XXXX HR customer service reach out to me and told me by email that I needed to contact there creditor at credit nation systems to fix the problem with them. 
I did just that I call credit National system asking them to removing this false debt and they told me they cant take it off my credit until XXXX   tell them to do so. I call XXXX talk to XXXX again told her what credit national told me and she said well its nothing we can do on our end. 

Now I feel as if Im getting the run around with XXXX and their creditor credit national system so I reach back out to XXXX XXXX customer service demanding again for someone to call me this matter is urgent In is affecting my rental history and now I wont be able to move anywhere. 
I patiently waited No one reach back out to me in regards to this matter I repeatedly sent emails to XXXX XXXX  customer service and call Credit National still Nothing could be done. 

On XX/XX/XXXX I receive two letters in the mail from National credit system Inc stating on behalf of XXXX XXXX I now owe a outstanding debt of {$850.00} the second letter from them was for another person whom I dont know .. I believe they have my information mix with someone else I dont know whats going on I know for a fact I dont owe XXXX XXXX any money I left them on good term my security deposit was due to me in the amount {$530.00} now they saying I owe them {$850.00} something dont add up and it XXXX sure dont make sense