Take a look over here…
… As if by magic, we’re currently speculating that this might be a thing 
. No official promises or guarantees though.
I really don’t think it was. It was more about regulatory rules about payment accounts, the logic that Monzo would need to build and the millisecond speed that the payment network needs Monzo to reply in.
I won’t assure you that’s true because - like you - I’m just going on recollection so would rather leave room that I might be wrong.