3. We do not have discounts for venues, restaurants, or services not included on the website http://www.visa.com/signature.
4. If a hotel is completely sold out and booked, we cannot reserve a room there; however we’d be glad to check other hotels nearby.
5. We cannot research your school paper, or do your job for you.
6. We can’t run personal errands or call your friends for you.
7. We can’t plan your wedding, but we can help you find a wedding planner.
8. As far as what’s considered unethical behavior, consider this an example: If child prostitution is legal somewhere, we won’t help you find one; however if you’re in Nevada and want to make an appointment for a rendezvous at the Bunny Ranch, we’d be glad to help you check rates and availability.
9. We don’t have access to your credit card account information or rewards program.

Please keep these not-so-unreasonable limitations in mind when you give us a call. We’ll hear from you soon.

http://www.fourhourworkweek.com/blog/2010/05/01/credit-card-concierge/