I was called by a collector but they refused to give me an address or the representative 's last name. They threatened to prosecute me for fraudulent activity and had information from a loan with " XXXX XXXX XXXX ''. The payment was over double what I had borrowed. They also said someone was coming to my house to deliver a " package '' after calling my employer and daughter for my address. I was intimidated and knew I did owe money so I released my personal checking information and authorized an immediate {$500.00} withdrawal and {$380.00} installments biweekly for XXXX more installments. They refused to send me anything in writing and said I would have the transaction ID. I only have a toll free number and was informed the company was located in California. Do I stop payment on the next installments? I am very uncomfortable and fear this is a fraudulent company. Nothing about the lending institution or collector is on my credit report.