You can do that. I once added a day before I left. luckily I had a receipt. When I tried to enter a park on that extra day it did not show up on my ticket. I went to guest relations and they didn't have a record of me adding a day. HOWEVER, they gave me a day pass for that park anyways. I always take all my receipts with me and any other information I need. I returned from the park I was at and was going to another park for the evening. I took my receipt to the front desk of my resort where it showed I had added a day and they gave me new park tickets.trying to avoid having to call Disney.
I have a WDW pkg booked (and paid in full) with 4-day park hoppers.
Can I wait until I get there and add a day? not to the hotel but to the park tickets? thx
Just remember if you wait till you get there, you won't be able to book any Fastpass for that day in advance at the 60 day mark
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