[umziehennachbar]

so after you charge the card two weeks later, the transaction still gets completed unless you've somehow figured out during the two weeks how to determine whether \the attempt was fraudulent. I don't think this strategy will work because it will depend on the fraudsters knowing that the payment won't be processed for two weeks and then deciding it's not worth it. Are they going to read the TOS?

[artursapek]

If the UI makes it clear that they aren't charged for two weeks, they likely won't bother waiting and move on to target a different service.

[umziehennachbar]

they also might see an advantage in the delay that you don't see and try it out.