I would definately call to confirm your PS reservations. I would call in the afternoon, so they have a bit more time to spend with you.
I called to confirm ours last year and they had really messed up one of mine. They had 2 adults and 7 kids on the PS, and it should have been 7 adults and 1 child. I got disconnected while the CM was fixing it, so I had to call back and spoke with a differenct CM and check on things. When we checked in at the restaurant a few weeks later, both CM's had put the reservation in, OOPS.
So I would definately call and confirm them, just in case.