Does it ever happen with Universe Club that someone becomes unreachable on the day of the first meeting?

Men pay the club a setting fee, so I don’t think they would simply fail to show up at the agreed place without contacting you. Otherwise, it would be like donating the setting fee to Universe. That said, they may contact you the day before to say they can no longer make it because of work, for example. (In that case, the setting fee is kept on hold by the club and can be used the next time.) So last-minute cancellations can happen. That said, there is still a possibility that you may encounter a man who becomes unreachable on the day. Since this was a question from a woman, you were asking specifically about men, correct?

It’s probably rare with setting dates, but it does seem to happen occasionally. In my experience, it’s only happened once: a woman I’d made an offer to suddenly canceled on another man the day of the date, was permanently banned, and my offer was canceled as well. With letter dates, I imagine there are cases where you arrange a first meeting but she simply doesn’t show up that day. There are probably also cases where, after exchanging a few messages, she stops replying and that’s the end of it. I’ve made offers through letter dates more than ten times, and I’ve only been stood up once after the first meeting. In any case, it’s a pretty rare occurrence compared with dating sites or apps.