BTW, having emailed a Design Hotel whose points hadn't posted a week after check out with a detailed breakdown of what was missing only for the points to miraculously appear a day later... I am now convinced that posting problems are not so much created by Marriott's IT but rather by delayed or error-ridden posting by individual hotels who (a) may not know how to use the Marriott system correctly and/or (b) cannot access the post and correct it after it's submitted.