Did the seller give you a tracking number?
If so what is the current situation of the tracked package?
If you have a number and the item seems to be on its way, don't worry.
If you have no tracking number you have a few choices.
You can open a Dispute with Paypal and get refunded since the seller cannot prove delivery (and it is delivery,not shipping). If the purchase shows up after refund, you can return the refund through PP's Send Money service.
You can wait until the last estimated date that eBay gave you for delivery and open an Item Not Received Dispute.You will be
refunded since the seller cannot prove delivery (and it is delivery,not shipping). If the purchase shows up after refund, you can return the refund through PP's Send Money service.
The thing about glitches is that they are temporary, often lasting just a few minutes.
I realize that you do have tracking, but this will be read by others with similar problems.