Once you meet the criteria for faster payments, see the link below, you will be able to withdraw your money within 24 hours of the sale.
I send most of my items as large letters with just a stamp on, so never get confirmation of delivery.
Generally though, payment is available before I post items out.
https://www.ebay.co.uk/help/selling/getting-paid/getting-paid-items-youve-sold?id=4814&st=10#qua...
"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)
