Is this in Apple Wallet? It only shows recent transactions so e.g. on mine currently it’s going back 6 days.
I tell a lie though - 1 of the 10 transactions in the list is “approved”, but the other 9, covering multiple different merchants, are all showing “pending”.
In the Monzo app, all of those 9 transactions have settled.
Yeah think that must be an iOS 12.3 thing, preparation for Apple Card.
Edit: although having said that it doesn’t look like you use Apple Pay on Monzo much, so maybe that’s why yours go back to January? Do you have more than 10 transactions listed?
Oh hey you’re right - it’s 10 transactions. I use Apple Pay on my Watch for most things, while my phone is used only for in-app stuff like public transport and horrific pizzas.