Its just like this... you buy a solar powered clothesdryer .... for say $500 ... and they send you a rope and clothespins
Or the good ol' 200 piece fishing tackle box set for $80, and you get a package of 200 hooks
I say be a nice guy and go through the company first... explain and if they ARE nice they will accept the return. I dunno the grace period ebay has, but good luck.