Some dates would help.
Looking at the email you got from Ebay when you paid what is the latest estimated delivery date?
Have you opened an 'item not received case?
You say you have contacted Ebay but do you have an open case?
What date did you open the case?
"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)