You can call DSS at 407-939-7777 or Email
disney.signature.services@disneyworld.com
They are there seven days a week from 9 to 5 Eastern Time. If you chose Email just include your reservation number.
If you mean a Bay lake view and not a TPV then I would pick any room north of the Elevator bridge. Rooms: 4814-4834. North end of the hallway is room 4834 still not to far from the CL lounge but tends to be quieter.
Room 4813 faces directly to the Elevator bridge. The lower number rooms from 4812-4801 are closer to Chef Mickey's which can be loud in the morning as you get closer to 4801.
Dave