"but it doesn’t shows now "
What is the item number ? Don't give the seller's name.
Do you mean the item was in your Purchase History and now it's been removed?
Is the seller still registered ? Check their feedback page
Have you set the See Orders > drop down box options for the correct timespan?
Does the item show when you enter the order number into the
' Search your orders' box on your Purchase History page ?
Or did you purchase as a guest
https://www.ebay.com.au/help/buying/paying-items/buying-guest?id=4035&srsltid=AfmBOoo6iZLvxj7Y2UAh6W...
Or through social media ?
https://www.ebay.com.au/help/account/signing-account/signing-account?id=4189#section4