For those unfamiliar with estoppel: http://en.wikipedia.org/wiki/Estoppel#Reliance-based_estoppels http://en.wikipedia.org/wiki/Estoppel#Reliance-based_estoppe.

For those unfamiliar with estoppel: http://en.wikipedia.org/wiki/Estoppel#Reliance-based_estoppels http://en.wikipedia.org/wiki/Estoppel#Reliance-based_estoppe... That would clearly apply in this case.