It's a very long story, it involves a maintenance man almost assaulting me, so they move me and my girlfriend at the time to another one of their properties. We didn't have much choice in our location. So the upstairs neighbors are being really noisy, we call security but they don't have to codes to the building so they can never complete reports.We go through the process of complaining and writing 15 day letters to the apartment complex. They don't address any of our issues and then don't even pick up the letters we send them certified. So we moved out after following the law that gives them time to rectify the problems. I believe we moved out in 2005. Suddenly this hits my CR in 2008 with no warning. They want $843 to clear it up. I'm not paying this on principle alone. I want my credit better but they screwed me.I'm not sure where to go with this now. Any thoughts?