We are a group of 10 I know it's late but I am desperately trying to book TREXfor August, the problem is it keeps saying unavailable so I tried breaking the group up when I do a party of 6 it goes through, but when I do a party of 4 it doesn't. Do I have to call to make reservations for a party of 10? Someone please help I already bought cute TREX shirts for my boys to wear.