Because your question has no difference in bearing about the practice.
Are you giving permission to practice this for one but not the other?
I have had them come as all levels of delivery. Level and rate of delivery does not give them permission to do it under any circumstances.
Are you saying that if I let them extort me into paying more then they won’t commit electronic forgery?
I’ll try again:
Have you EVER given them permission to deliver without a signature?