send a note back telling him that to get him started you can set him up with a font and a stock color for their needs, real basic. later when they get up and running, you can then re-work the basic into a logo for them. as far as designing for free, you have a fee for your work and can't wave that. or tell them to go to hell, who do they think they are asking you to work for free and give away your work to a total stranger...either one