I recently spoke to the support team about this. Monzo includes my middle name on statements (which seems excessive but I can live with) and on transactions (such as faster payments etc), where I’d really rather it not be.
I was told that this is due to legal requirements, but when I pointed out that other banks have me on transactions as Surname + First name or Initial plus Surname it was shrugged aside.
Now, maybe it’s technically difficult to change. Or maybe Monzo is reflecting the absolute letter of the law. But it does fall short of my usual expectations from Monzo - and isn’t particularly customer focused.
(As a general aside, it really pushes my buttons when institutions hide behind “the law” or “banking regulations” or “the data protection act” - when actually they have discretion about how to comply. And it’s impossible to talk to anyone about it. I’d be much happier with “we’re just not going to do it”. Blunt, but you know where you stand).