RIPPED OFF/HOW TO FILE COMPLAINT?

We were charged a deposit and extra rent per month for 5 months due to an error on my husbands credit report. At the time we moved in, there was a special of "No deposit".  I provided the manager a police report, copy of old and updated credit report and proof that the false item on the report was irrelevant.  The manager said that she would just need to clear it with her manager and that shed refund our money.  For 4 months she kept saying Oh im still waiting for an answer.  I finally called and asked.. she said oh i cant refund that for you, sorry.  I have called a company that claims they are the corporate off… ive complained twice to them and received nothing. Who can i contact to make them refund our money???!