Have you called HH USA?

As mentioned just a few posts ago, they do oversell BVs but I've never seen anyone walked in the 2100 reviews on TripAdvisor. However I have seen a couple of instances of it happening at other resorts. Extremely unlikely it would happen at Rangali. I was told a story about a time many years ago when there was extremely bad weather and quite a few guests couldn't get back to Male so they put guests up in any place they could including management's accommodation (at the southern end of Rangali) and on the yacht as well. They bend over backwards for you but I suppose there's always a miniscule chance of it happening as their occupancy rates are so high (high nineties most of the time). I wouldn't be concerned about it in the least if I were you. And if it were to happen you would be informed of it prior to the seaplane journey and they'd arrange equally good or better accommodation at another, respectable resort.