You should probably book a 27-night stay, check-out and move to a different hotel for a couple of nights. (weekend away for example) Once your account has updated to Globalist, then you could return to your hotel and be Globalist for the duration of that second stay. Probably not worth much at a HH or HP, but you'd get the 30% bonus points...

Also double check whether there are maximum stay limitations on earning points, etc. with WoH. I can't recall off-hand.