There are many scams and a lot of them don’t involve a contract at all. There are also ones that do involve a contract and upholding it is part of the scam. Regardless, you missed the point that just because someone pays the price, doesn’t mean everything is fine and dandy.
Usually a scammer doesn’t uphold his end of the contract. They promised you something, but you didn’t get it.
That’s not the case here
There are many scams and a lot of them don’t involve a contract at all. There are also ones that do involve a contract and upholding it is part of the scam. Regardless, you missed the point that just because someone pays the price, doesn’t mean everything is fine and dandy.