I just got an email from monzo with that title, basically suggesting I upgrade to Plus so I can enjoy interest payments and the ability to process bigger roundups.
I personally don’t mind it if Monzo include badges, and other screens to promote Plus/Premium, but this is not good.
Monzo did this a while ago if I recall, where they were suggesting people take out loans to fill their saving pots, or something similar? (someone can correct me).
Clearly they haven’t learnt the lesson.
(Edit) I now have a notification in my feed, a pot to the left of my current account with this advertising, AND the email. Picture below: