Another SNAFU. According to the person at the FAFSA customer service line, they send out your PIN number as bulk mail. So if you used your university email address to apply for the PIN, and your university has a junk mail filter that is not configured to allow emails from .gov domains, you will not receive the PIN. Solution, according to the FAFSA people: give them a different address instead. They told me that AOL has this problem too but there is a workaround. I have changed my address to my yahoo.com address. I will let you know how long it takes for me to receive my PIN.