Phone number is 1-721-544-3737. I would try calling.
After Irma and the rebuild and Hilton taking over, I don't know that old email contacts would work. I have some old ones but don't have access to them right now.
Actually, there is a call back feature on the website. No idea if it would work but you might try. Scroll to the bottom of the page to find the feature.
https://www.hilton.com/en/hotels/sxmrogv-hilton-vacation-club-royal-palm-st-maarten/