It usually takes a maximum of 24-48 hours for my agent to get back to me.
I really enjoy DU, but on our first trip, we had a few bumps in the road with our first agent. She would take up to a week to get back to me. I finally emailed.. John, i think his name was, and he took care of it for me. We are now with Cathy Miller and LOVE her. I request her everytime we book a new trip.