Ok, so I went wuhhh and back to my online order from the Apple website and sure enough both Otterboxes are showing not eligible. Called Apple, not a problem at all, the website can be wrong. The rep said you have at LEAST 14 days from receiving to make a return and even more since it was "online".
Were these to have been bought from an Apple Store in person the 14 days is firm but you can still return them.
I suggest you call them up and ask as well assuming you did indeed purchase from the Apple online store.
Let us know how it goes.