Let me guess: offers can be sent by PM yesterday?
Stephen Hawking tried that in 2009 (when Bitcoin was created - coincidence?). See
mashable.com:
"I have experimental evidence that time travel is not possible," Hawking told reporters at the Seattle Science Festival in 2012. "I gave a party for time-travelers, but I didn't send out the invitations until after the party. I sat there a long time, but no one came."
I am about to summon you earlier, but come back to here and you are already here

this is literally me a few minutes ago.

we need
@Foxpup to join this thread.
I take this thread seriously and wondering the price for this kind of service (in the past or in the future).