I just set up a one-off payment for a later date on my phone and was shocked to receive a message saying "Nice work! You just completed “Set up a recurring p…” There’s no way of knowing what the rest of the message says because when you select it you just get taken to the Monzo account home page with no trace of the message to be found. The word “recurring” is certainly worrying though.
I suggest that one-off payments are congratulated with "Nice work! You just completed “Set up a one-off p…”