You need to listen to sandy, she's right.
It isn't an easy job to get in touch with ebay but you can so so via chat. It involves typing back & forth, it isn't a phone conversation, but it can be done if you go through the help pages.
Everything depends on when you bought the item. I can see you are new to buying on ebay.
If an item does not arrive by the estimated due date (which would be listed on the original ad, which you can access in the "My ebay" section), then what you need to do is open an ebay claim for item not received. You need to do that though within the month of that arrival date.
You could message the seller but no matter what they say, if you don't have that item, you need to open an ebay claim soon after the estimated date of arrival has passed. And you need to follow through with it, don't let it lapse.
Unless the seller can prove the item was delivered (ie tracking) then they would lose and you would get a full refund.
PS We can't exactly tell if you were scammed, we don't know enough about when you bought, what you bought, what ebay is showing about the transaction. You may not have been.
