Hi there! I have a small detailing business and every Sunday night I go to the Bellevue Square mall to detail the Tesla Model S prototype for Tesla Motors. I have been doing this for the past 8 weeks and still haven't been paid from any of the invoices I sent. They owe me over 800 dollars and the manager told me that they sent out two checks two weeks ago. I still haven't recieved anything. I keep emailing the manager and now I just get no response. They have me set up as a vendor. So I was wondering what should I do/ what can I do? Please help!