Sams club cupcakes

Anyone know if they'll do a custom color scheme for the frosting? If so, how much of a heads up do they topically need (one 30 count pack)? Do they only have buttercream, or do they have whipped frosting as well?

I've been trying to call them all day and I can't reach anyone. I just moved an hour away from our nearest sams club, so I can only make one trip next week before the party. I'm trying to get all this figured out before making a trip, so I can plan accordingly.