avantage nissan scam and lied about 250.00 that i suppose to recieve in which they call bird dog westbury, New York

In December of 2011 I purchased a 2011 maximum. I was very satisfied with my purchase, and was told by the finance department if I brought in a customer I would receive a check for two hundred and fifty dollars, one week later I brought in a customer and was told a check would be mailed out to me, I never receive a check. spoke with Nissan five times they claim a check was mailed never receive it. I feel Nissan lied about mailing me a check, I will never recommend another person to buy from advantage Nissan.