Has anyone experienced water in the rear well where the seats store?

What is your question?

Approximately six inches of water accumulated in the rear seat storage well. We put the seats down immediately upon purchase. Four months later we went to raise them to accommodate more people and there was several inches of water soaking the seats and rusting around the metal. Dealer can't find a leak and won't admit any liability. $7500 to replace. Said it is on us.