If you have received a fake item you need to start a return case.
You have 30 days from receipt to open a case.
Ebay don't act on reports of fakes but, if you open a return case, the seller will have to provide a label and refund you in full if you return the item.
"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)