Did you reserve a preferred site? If not, then it will do you no good to request 300.
Did you tell them that you were bringing a pet when you made your reservation? I think you were supposed to.
If you reserved a preferred loop, and noted that you would be bringing a pet, that should pretty much guarantee the 300 loop. It is the only official preferred pet loop.
Even after correcting your reservation, it is a good idea to confirm your request by sending a fax 5 days before you arrive.
This is Disboard member clkelley's tried and true form:
The fax# is:407-824-3508
Date
TO: Ft. Wilderness Resort and Campground Site Assigner
FROM: Name
Address
SUBJECT: Site Request for Month xx - xx
RE: Reservation # xxxxxxxx
I am really looking forward to my stay at the Ft. Wilderness Resort and Campground and am writing about campsite requests. I do understand that these are only requests and cannot be guaranteed.
If possible, I would like a site in Loop xxxx or Loop xxxx with a site that will accommodate the following: (list your "stuff" here) and near (whatever you want to be near).
Thanks so much for your help, and once again Im really looking forward to my visit to Ft. Wilderness Resort and Campground.
If you have any questions, I can be reached at xxx-xxx-xxxx or by email at xxx@xxx.xxx
Sincerely,
Your name here
Good luck!
TCD