It's really hard to explain. The user opened a support ticket to change his guess and said there is no rule in the matter that his prediction is unchangeable. And we changed his prediction. This is our fault. We apologize to everyone.
How hard it's to explain?
https://www.blockchain.com/explorer/blocks/btc/768250The block mined on Mined on December 20, 2022 06:18:59
The edit time

Oh dear

Result announcement
So December 20, 2022 06:18:59 to December 20, 2022, 06:32:47 PM was enough time to do everything.
Shall we say the support ticket was fake, the really hard to explain phrase is fake too. Well you are fake.
Stop it and admit.