The collector ( Professional Dept Mediation, inc ) has reported to credit report that i have a balance with there clients.i do not have a balance.i leaved there for XXXX years always paid on time never late.i completed my rent.They bushed me out because the complex was going to be converted to condo and they where selling them to future owners so old management company who was there for XXXX years got fired replaced by a new company brokers so they can sell and convert XXXX XXXX to XXXX investment.there was a war on administration old to knew.i left when knew company was coming and i did n't want us to renew the lease so i was forced out.that was almost XXXX yrs ago.now they say i have a balance {$3700.00} its a lie .i need help please.