I've already got a great story due to using the email address Adam's provided for us Flyertalk members.
I was having problems getting 7000 Mypoints to transfer to Hilton and was wanting to use them next week in Denver.
After emailing Hilton about the problem and asking them what they could do to expedite the transfer, I received an email stating that they would credit 7000 Hilton points to my account for my immediate use and would contact Mypoints regarding the issue.
Now THAT is what I call outstanding service. Customers don't get such wonderful treatment as often anymore.