Why is it so bloody hard to find and download an e Receipt from the Web page?
Do you mean e-folio? Depending on the place you've stayed it should appear in your email around a day or two to a week after the completed stay.
If you are missing them please call Marriott Rewards and check your profile to ensure that all information is correct and you've checked that clock that tells them to send e-folios.
I rent cars from national rental car and as soon as I turn the car in I have a receipt in my email.
Why can't Marriott they be on top of the process of sending receipts instead of lagging behind?
It has been usually a week before my receipt shows up.
No excuse is good enough for me.