Apogee's fax number is (972) 278-4670. Be sure to include a return fax number. This number may also be used to contact one of Apogee's specialized divisions such as 3D Realms. Note that while the fax line is open 24 hours a day, the people who reply aren't always there; so if you're faxing when it's the middle of night in Texas, you probably won't get an immediate reply.
[7.3] By Snail Mail