This is very sad of me but I thought I'd google this to see what came up and I can't really see a definitive answer. There are lots of owners clubs listed, some with an apostrophe and some without and even the answers to the grammatical/punctuation question are conflicting.
Mind you, the rules of punctuation that I was taught at school many many years ago seem to have changed somewhat and much of what I've read online gives the impression that these days, anything goes
So, basically I'm no wiser now than I was when I read your post bingalau, except I do know that, as willowaz said, up! is definitely officially lower case followed by the exclamation mark.
Thanks for the post and making me think
Mind you, the rules of punctuation that I was taught at school many many years ago seem to have changed somewhat and much of what I've read online gives the impression that these days, anything goes
So, basically I'm no wiser now than I was when I read your post bingalau, except I do know that, as willowaz said, up! is definitely officially lower case followed by the exclamation mark.
Thanks for the post and making me think