What is the latest estimated day of delivery on the listing
If you have not recieved your item and it is past the latest estimated day of delivery on the item description
then you can open a not recieved dispute one day after the latest estimated day of delivery on the listing.
You can do that at the bottom of the page under Resolution Centre
Escalate it too ebay after 3 full days
https://www.ebay.co.uk/help/policies/ebay-money-back-guarantee-policy/ebay-money-back-guarantee-poli...
You have 30 days from the latest estimated day of delivery on the item description to open a dispute
Items do go missing at times. Is there tracking on the item for you to see if it was posted or in transit
To win a dispute the seller needs to prove Delivered
