Respected Sir, I Vacated an Apartment in XXXX and while I was staying there on Notice period, no one came for Inspection on premise. When I vacated I got a huge bill of XXXX PLUS XXXX, Stating proper notice was not given and lease was broken. But when I reminded about my submission of my employer letter, they then reduced the amount. 
Then again in the new bill, they mentioned they replaced kitchen counter top and charged me, which was fine when I left.Then I asked for proof like photo, which was not sent. Then National credit system called me as a collector for debt and I mailed XXXX that I DISPUTE claim, still they went ahead with collection agency. Collection agency mentioned if out of XXXX, I owe I pay XXXX ( minus countertop ) they will not report to credit beaureu and I paid that. Inspite of that, now when went with home purchase, to my surprise, because of remark from National Credit system my loan was rejected to low credit score.I called national credit system then told If I pay remaining another XXXX USD to settle in full they will remove it. Still now I can see a statement saying Settled less than full amount in Credit score. National credit also issued me a letter that I owe nothing. Still it is appearing on credit report. I have been a law obeying and good person, but such incident has left me shattered. Please help me, when I have Disputed the claim, how was this handed over to National Credit system. Why did national credit system say that once I pay for amount minus Countertop replacement which was a dispute, they will not put in credit report and still went ahead and put that. Also now also they are not removing it from my credit report affecting my home purchase and interest rates. Also XXXX reduced the final bill XXXX accepting that original bill was incorrect so is this not means to extort money, if they is no resistance. I have full faith in truthfulness and American Justice so please help me.