That is the charge which this thread was originally discussing. However, I think the charge notice that @ProTofik and @Wheetoz are referring to is the one which all ATMs present (sometimes proceeded by a language choice), as they see that the Monzo card isn’t a ‘proper’ debit card, and treat it like a non-UK/credit card.
This charge notice can be disregarded, because the charge is at the discretion of the card issuer. It’s the same notice you’d see if using a foreign debit card in a UK ATM. But for people that don’t understand what’s going on, it can be confusing/unsettling. Of course, this is purely a beta issue.
Edit: Just saw this thread, which confirms my suspicions above. @alexs, I think the confusion has arisen because you split some posts off from the thread about Monzo cards being treated as ‘foreign’? I’m not sure they belong here, as this thread is about fee-charging ATMs (a minority in the UK), not ATMs that detect the Monzo card as ‘foreign’ and put up a notice that a fee may be charged by the card issuer (in my experience, all ATMs in the UK!).