You are not talking to your seller or to eBay, but to other members like yourself.
If you haven't received your item, proceed this way, be aware if the seller has tracking to show delivery, they will not have to refund you.
Go right of the item purchased, and from More Actions select.... I Have Not Received My Item.
If you are not fully refunded within 3 days, you must escalate the case on day 4 or within 30 days from opening the case, and eBay will step in and force the refund.
Do not close the case early for any excuse or promise the seller may give, and do not forget to escalate.
@normalbro_0