I ordered a cat scratcher. Cat scratchers are perfectly commodity things.. but mine wasn't. I ordered a handmade one. What I got shipped was a repurchase from Wayfair.
I sent a single picture of the box and got a full refund.
Yes, I got a cat scratcher but the handmade part was a material term of the deal.
Paying someone to do a psychic reading is not buying a paragraph of text. You are buying an action.
If you hire someone to tweet original tweets on your behalf and they just use a bot to retweet random clever sayings... they have in fact engaged in fraud!