Tell them that the product # is probaby correct..but the actual product in the package isn't. I had a similar instance with my new microwave...the charcole filter that had to be ordered seperate had the right model # on it, but the wrong filter inside, it got mislabeled at the warehouse. Funny thing is, the dealer over the phone kept telling me that its the right one, it has to fit lol...eventually figured out what happened and I got the right one.
http://www.applianceblog.com/mainfor...t-fitting.html