Have you paid?
Check the email you received when you paid. It will give you a range of estimated delivery dates.
One day after the latest EDD you can open an 'item not received' case.
If the item does turn up, you can send it back as long as you bought from a business seller. You will need to pay for the return.
"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)