d-maz, the pumps you have should be the newest versions I am thinking as we just sent them to your dealer last week, check if your prop assemblies are black, the new version the magnet and plastic is black with a white prop blade, older versions the prop shaft and the base plastic on the magnet was white.
BTW, I can just say from all the years I worked in and ran retail shops, Tuesday and Wednesday are the slowest days of the week so it is a logical time to be closed.