Yep, it is annoying , more so when you are relying on it to release held funds, but eBay tracking is notoriously slow to update.
If it has shown delivery wait a few more days, if funds are not released, contact eBay Customer Services, provide them with those updated tracking numbers and ask if they could kindly release your payout, currently on hold.
This is the easiest and quicket 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 between 8 a.m. to 10 p.m. on weekdays.
9 a.m. to 6 p.m. on weekends.
I recommend contacting CS very first thing in the morning, when the lines first open, as there's more chance of Dublin answering.
@sitho-danie