I received an email for a secret shopper. David Harper sent me a priority envelope with a check for $915.00. I was told to deposit check...get name/address of bank, teller name, knowledgebase of the teller. Then to send a copy of deposit form (in which I blocked out the acct#). Then to go buy two gift cards. I noticed something fishy when I bought the wrong cards and he started emailing me about user names I never set up. When I said this was fishy and I was sending the cards back to address on priority envelope they got mad saying just give me the pin and username. Then I proceeded to say I'm calling police, and never received a response back. Then I looked online and seen similar scams with his name so I said I'm taking everything to police. Still haven't heard anything. Now I'm gonna owe the bank 915.00. I'm mad because I dont want to get in trouble for some scam. Help!