I heard back from 3 other people who ordered Muscovy eggs from the seller and one didn't get any to hatch, another ordered 20 eggs and also got a Mallard but only 4 other eggs hatched but were on time and the last person had 2 hatch early and 1 hatch on time.
I think Ebay needs to extend the time to give feedback, because by the time I found out what was wrong, it was too late to give feedback.
I think I would contact ebay and let them know what has been going on.