U.S. Collections West, Inc. Debt Collection Complaint

U.S. Collections West, Inc. Debt collection department,

Other (phone, health club, etc.) Disclosure verification of debt Right to dispute notice not received Arizona

I moved out of - - Apartments and spoke with the office manager. She stated I did n't owe anything. 3 months later, I got a letter stating that I owed an amount from them ( do n't have the letter ). I contacted them. Received an email stating that I owe $570.00, but was not notified via regular mail. Six months after, I received a letter from the collections agency stating that I owe $870.00. I have attached all documents.