If you receive an item which is not as described in the listing, you are covered by the Ebay Money Back Guarantee.
You should open a return and send the item back for a refund.
That is more effective than trying to make a complaint to Ebay and has more of an impact on the seller.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)