Trying on my disney experience to change my arrival dates

[cottontail]

Hi I am trying to change my trip dates to wdw this fall. I have already paid $200 on two rooms, on the disney my experience it took me back to the regular disney resort page and i put in my new dates then it took me to the end it looked like i would have to pay another deposit, is there a way to skip repaying another deposit and still pick a different arrival and depart date?