I'm going to write this as a user, since I am- well.. no moderator. Don't quote me on anything because the things I say are mostly opinions/observations:
A lot of people get banned from chat. Whether you did spam or not, I believe the reason they do it is because if they do sense something happening-they are going to do something about it. I have no experience as a mod, but this just seems like common sense. Plus, I don't really see the point in complaining? It is a free-to-use chatroom, and it will usually lift if you haven't done anything wrong. Misclicks happen, moderators are not perfect, and no one is telling you to commit to this website; you are choosing too. All I want to say is: If you see it as a problem, appeal it, thats about it. Its not a big deal, at least in my eyes.