Ordered a tank sending unit according to their spe...

Ordered a tank sending unit according to their specifications listed in their catalog search. When we got it in it was the wrong one. We sent it back and ordered the right one. They called and told us that they would not give us credit for the wrong one because it smelled like diesel fuel. So now we are out over $700 when I could have got it at the local Ford dealer for around $450. I guess you live and learn.