Money is demanded if I click an image appearing in a URL and the site attached to the mail, and the cancellation fee occurs more if I send a mail to cancel it in a hurry.
However, I can swing a frame like this tightly.
Well, I will pay it.
This is a one-click charge fraud.
It is a trick used in adult sites mainly.
Even if money is demanded by such means, we do not have a duty to pay legally.
However, there are many examples that the parson who felt uneasy really pays money to.