I rented an apartment from this management company...

I rented an apartment from this management company a couple years ago and it came to a point in my life where I could not afford to pay the rent so of course they started the eviction process showed up in court and I talked to their representative and told him that I understand the money and move to another apartment as soon as I could I'm here informed me that all is well and I can leave so I left a couple months ago I get a bill for over four thousand dollars they say which is ridiculous because they had my security deposit deposits to remove whatever I left in the apartment out and to paint the apartment which was $825 so I'm trying to bill me for $4,000 they lost a bag online I'm not paying