Does anybody have advice for guaranteeing an upgrade to an overwater villa (with or without pool)? Booked a beach villa on points for 4 nights in mid-August and was under the impression that I could guarantee an upgrade to an OWV for their quoted upgrade rate via email ($200). However, they are now telling me that upgrades are dependent on availability at check-in, not now. If this is the case (that we might not be able to stay in an OWV) I might switch our reservation to Le Meridien Maldives, where it seems like I'd have a much better shot at guaranteeing an OWV (really the whole reason why my partner and I are going to the Maldives). Does anyone have advice/thoughts on this? Thanks!