Calling something a “fallacy” is the fallacy fallacy: a mistaken believe in the authority of a made-up concept. In this case, certain norms of conduct in busin

Calling something a “fallacy” is the fallacy fallacy: a mistaken believe in the authority of a made-up concept. In this case, certain norms of conduct in business do exist, and they do often serve all market participants, and businesses have every right, and often succeed, in enforcing them. I’m not sure about the specific example here, as I happen to live in a jurisdiction where it’s illegal to follow up on a trial subscription with endless marketing emails. But, as just one example, cancelling an appointment you can’t kept us not just “sympathetic”. It’s basic manners, it improves life for everyone (including you), and nobody would be surprised that not following the norm could get you banned.