We made Platinum for the first time this year and also noted that all bookings made before were not updated by ANY of the hotels, until we began emailing each hotel ahead of time to casually enquire where we might access breakfast as a platinum guest. That fixed it at every hotel from that point on, although at least 2 emailed back to query why we were asking when we were obviously Gold. From our few data points ( 5) our experience is that 0/5 had refreshed as apparently suggested.