Product: Debt collection

I paid my XXXX rent in full. 
Early morning XX/XX/XXXX I XXXX XXXX XXXX and moved me and my son out of my apartment taking only what could fit in my SUV and went back to Louisiana. I had been dealing with XXXX  XXXX. My job was fully aware because I showed up to work with a XXXX XXXX, a XXXX XXXX XXXX and XXXX XXXX XXXX. But even still I told them due to personal reasons I am quitting effective immediately. 
For the XXXX I knew that I was good for the month of XXXX and come XX/XX/XXXX they will put up an eviction notice and Ill be evicted. XX/XX/XXXX I get an email from the XXXX asking when will I pay or move out. I respond with due to personal reasons I am unable to continue my lease at ( my address ). I state that I am already out the apartment and unable to get my things. I also leave a forwarding address. I get a response the next day that says thank you for letting us know you are out ( my apt # ). Im aware there is a fee for breaking my lease so I wait for that. 
End of XXXX Im getting weird hits on my credit report that I didnt do. 
XXXX I have accounts open in my name that I didnt open. I dispute all of that and is able to prove I was not in Texas at the time and that those werent my accounts. I try to press charges but get the run around with TX and LA. 
XXXX I finally get my permanent protective order from my ex. 
End of XXXX, I get an email from the XXXX with a receipt reversal for {$3100.00}. I get another email later asking when can I pay. I respond I moved out in XXXX and send our emails. No response. Im thinking they just got the wrong account. Ive never made a payment of {$3100.00} and my last payment I made was in XXXX. 
XXXX Im trying to buy a house and a Procollect collection is on my credit report for {$3600.00} from the XXXX. I know Im supposed to pay an early termination fee just dont know how much, my rental agreement was in the apartment I left. So I call Procollect to see about doing a pay for delete. Its XXXX time Im overwhelmed I just want to get this over with. Im told they can do that so I ask for it in writing. She states well this is a recorded line and you will get that after you pay. So I say ok Ill call back next week. The next day I call the XXXX and ask for my balance. She tells me {$7000.00} and offers to send it in an email. Never asks for my email because she already has it. I get the email and the note says. Skipped out/owes money/no notice. Then it says notice date XX/XX/year>. Its also charging me for half of XXXX, late fees, cam fees and the {$3100.00} and {$50.00} nsf that I didnt make. So I try to call them back several times and no answer. So i call Procollect back and let them know I want to dispute the amount. Im told they dont have an itemization list of charges. I tell them I do. Im told to email what I have from them and my proof. So I do that. The next day I get a call from the most rudest lady. She is hostile off the bat and will not let me get a word in. I tell her they are saying I didnt give notice and I did 2 months prior. And she says well they can do that. I said so they can wait 2 months to check to see if Im gone after I told them I was gone and she says yes. I said well did you even call them and she said no I dont have to. I say thats not what I was told yesterday. And I says I never paid {$3100.00} to them and she is mocking me asking well y would somebody pretend to be you and starts going over my email address and phone number which I wasnt contacted on. I tell her I actually have a stolen identity case as we speak and hang up because she was overtaking me. I called back and got someone different and calmly explained everything again and pretty much got the same answer from him everytime that I should contact the XXXX. I dont know what else to do. The XXXX wont answer and Procollect wont even contact them to make sure its the right amount. Meanwhile they are keeping this on my credit