Great response from Monzo. I live in Scotland and it's amazing the difference companies like monzo have compared to regular banks (see the tesco bank fiasco)
Anecdotally, it seems Scots are more likely to say Scot* vs UK than are Welsh/English to offer the equivalent. I certainly grew up (in England) with the feeling that one had to be careful to say 'UK' if one really meant UK, for fear of similar reprimand to that when using a gendered pronoun that may or may not be correct.