Product: Bank account or service

My situation is very clear and simple. I have made a cash deposit in an ATM from chase, to which I have an account. This happened on a Saturday XXXX XXXX 2015, the problem was that we made the mistake of selecting deposit check instead of deposit cash, but the ATM did not return the money for such mistake, it took it and was reflected in my available balanced that same day. I even made a purchase that same day with that deposit to which I have proof, and I would n't be able to do so if I would n't made that deposit. 

The nightmare started on Monday XXXX XXXX 2015, when I got a negative balance for the deposit I did on Saturday. I called Chase customer service and their solution was to open a claim and they gave me back temporarily my money until the investigation gets resolved. A month later, I do n't receive a resolution in any kind of way, but I do get a negative balance on my account for the same amount of the deposit, so I called again customer service and they came to the conclusion that they did n't find any extra money in the ATM and that maybe they did the investigation on the wrong ATM, because of that issue they opened another claim, again they gave me the amount temporarily until the investigation gave a result. A week and a half later aprox, they did n't notify me in any way, and I realize again in a bad way that I had another negative balance in my account for the amount that I have been fighting for. I went to the branch where I opened my account to get some support and they only gave me the Executive Relations number so that I can escalated to the next level. I called the Executive Relations and they came with the resolution that the ATM is claiming that it gave the money back to us, and it never took it, my first response was total anger because the ATM is robbing me and if Chase presents accounting issues it should not reflect on their customers, full disappointment because its not possible that a machine error can not be detected that easily. I demanded that instead of calling me a liar they opened a full investigation with the cameras of the ATM and their answer was that I had to get a subpoena to get access to that, or to present proof, but of course that what I am trying to obtain, " proof '' from the camera footage. 

I already reported a complaint at FDIC but I am not quite sure where that is going to go, because they forward my information to CFPB. I called the police department to file a police report because I feel like I am being robbed by the bank and they recommended me that I might have to sue the bank, and acquire a civil lawyer to litigate against Chase. But the sad part is that I already consulted XXXX lawyers and they told me that could not take my case. 

I am a citizen of the US and I am looking for somebody to help me with this. 
The amount of the deposit that I am fighting for is {$580.00}, it might seem like is not much but believe that I do n't feel that they have the right to keep my money like that, and be so cynic to treat me like this and make it hard on me when i do n't have that much money to just leave it like that when is my money to begin with. 

Please I requiere help.