1) Why did you buy? There must have been something about the property? Is it because the property is not open and unusable? Do you want to perhaps keep and rent it out to cover costs and use some years?
2) Avoid the exit company. They will do what you can easily do yourself for free because the law is on your side.
(This is what an EXIT company would likely do.) If you want out, contact HGVC and ask for "deed in lieu" of foreclosure. Tell them if they say no you will walk from the property and allow foreclosure because "South Carolina is a non-judicial, anti-deficiency state." i.e.They will spend high legal fees on foreclosure and all they will get back is the property. They cannot legally go after your other assets unless you object to the foreclosure (which you won't because you want to get rid of it) so why not deed in lieu and avoid this extra cost, hassle and delay? Check the TUG sticky's on Timeshare Laws by State and hire an SC real estate lawyer for one hour (a few hundred) to go over these laws and confirm your approach as we are not lawyers. Do not hire the exit companies to do this.
3) Your credit score may dip but if you are in dire financial straits and cannot afford the timeshare it won't matter.
Good luck and please report back your outcome so you can pay it forward to others.