This looks like this was your first sale or that you've returned to selling after a break so a longer hold may be in place on initial payouts.
Wait another few days if the payout is not in your eBay Balance, then contact eBay Customer Services show the code you scanned showed the buyer has received their collection item, could they please release your payout sooner.
This is the easiest and quickest way to contact eBay Customer Services, for a Call Back option.
https://www.ebay.co.uk/help/eua?id=5275&mkevt=1&mkpid
Lines open 8 a.m. - 10 p.m. on weekdays
9 a.m. - 6 p.m. on weekends.
Automated agents will be available on chat outside of the above hours.
I recommend contacting CS first thing in the morning as there's more chance of Dublin answering.
@admeh136
