Today I received in the mail a check from White Allen, a Chevy dealership in Dayton. It is $250 for a full page ad but no ad is provided. It also had a form W-9 which is a request for taxpayer ID number and certification or at least someone's SS number. It will need to be filled out. Is anyone familiar with the W-9 form and who should be the person to fill this out? The check becomes void after 60 days so please help me on this question.