This is the address I used this summer and it arrived fine. Some water was on backorder , so it arrived a few days after (3 days), but we had plenty of water at that time anyways.
They were delivered by 2 different cast members. The 1st cast member was desk service and couldn't/wouldn't accept tips and the other was a regular delivery cast member and I did tip him. I think I placed the Walmart order about 5-6 days before I left.
Hope this helps!
My Full Name- Arrive: July 24, 2012
1251 Riverside Dr.
Disneys Port Orleans Riverside
Lake Buena Vista, FL 32830
USA
Have a Magical Vacation !