I was included in a group message a while ago about saving a date for a friend's special occasion. The details were supposed to follow later but the event is imminent and no further details have made their way to me. It's nice to be included but I'm not fussed about going or not. I just think it's a bit odd. I don't want to be where I'm not wanted if that's the case. Equally I don't want to be the rude one by just not turning up if it's just a mistake. I am thinking about waiting and seeing. If nothing happens then just letting her know in light-hearted way that the details didn't arrive rather than I just didn't bother. WWYD?