Just in defense...
Some clubs have "designated" instructor's, and quite a few of them have fairly extensive training for anyone willing to instruct. Ours is one of them. Our instructor's are knowledgable, competent pilots. And we pretty much have designated days, that the instructors will be there. You seem to forget that no one is "obligated" to teach you to fly! And a lot of very good pilots are hesitant to fly your plane or teach you in this litigatious society. I see a lot of youngsters whose parents just drop them and their equipment at the field, and expect the members to "take care" of them...
If you want to learn to fly, join the club, go to the meetings, meet the instructors if they have them, find out when it's convenient for HIM to teach you, be there early, and ready to go when he shows up. Pretty simple, really.
you said the instructor showed up, and said he wouldn't teach that day. I didn't see you give a reason, or if he was flying himself. It's possible he had just come off two weeks of teaching everyday, and had no time to himself, to fly his planes. And if you hadn't made prior arrangements for the two of you to fly, you have NO complaints! Again, it's not your RIGHT to have ANYone teach you.
When you go to the field, and are waiting, do you help out the other pilots? Hold planes when they are starting up, learn to be a spotter, while they are flying? strike up conversations with pilots when they are between flights? Or do you stand around expecting someone to take the time out of their day, to teach you?
There's a lot to this hobby. I teach whenever I can, although I am not a "certified club instructor". But I rarely fly at the club field, anyway. But if I have someone who is all too willing to learn to fly, but can't join the club, or help out, I don't spend much time with them...
I am now in the process of teaching my 10 year old daughter to fly.l