Both of those telephone numbers are valid and go to the same place. The 800-548-1806 is the generic number used to track all genealogy product sales calls. The 800-397-4243 was a number set up specifically to track UFT sales calls. Again, though, both of those numbers end up being answered at the same place.
We contract with Mattel to provide telephone sales so that is why you hear Mattel messages. Because, though, they are a separate company, what they choose to sell on their Web site is up to them. If you want to order electronically, you should go to the source which is either www.uftree.com or www.genealogy.com.
Sincerely, Paul Burchfield, Genealogy.com Technical Support