I was chatting w/ a FDC re: the issue & he said the properties are pretty frustrated too, that w/ Marriott's IT not pushing the emailed folios to the guests, that they're getting a lot of calls from guests saying they didn't get the folio & asking them to scan & email folios to the guests. In the past they had to do it occasionally, now it's frequent. That's slightly different to downloaded receipts, but shows that Marriott's IT isn't just screwing us up, but also the properties.
Cheers.