We are doing a spur of the moment trip. I bought a couple of two day base tickets from Undercover Tourist and successfully linked them right up to MDE. The first day on the ticket is 7/28. Now we have decided we would like to go to a park on our arrival day 7/27. Called to add a day to the ticket and the agent said she couldn't do it. Is that correct? Has anyone faced this before? Am I correct in thinking that I can't make fp with this ticket on 7/27 and add another day once I get down there? Why did they have to make it so complicated??