just
Whatever you're considering, be aware of the info and warnings that are in the link posted by Barry:
"... The charges are very competitive at the moment so don’t sign anything, don’t commit to any commission until you have considered matters fully. If you are invited to a presentation there is no need to go to one as pressure may be placed on you to go with them and them alone. Presentations and salesmen cost money. If you attend one and sign up with them, you will be paying for the selling, the advertising and the other costs incurred by them for the many abortive presentations. ..."
If this were me I'd be waiting on Barry's opinion, if he has one, about the org who provided the link as well as what your next steps should be. I wouldn't be searching on the internet for firms to help, yet, because apparently there are many who are taking advantage.
Just catching up with the recent posts.
There are many “so called” Lawyers and Legal Companies, especially in Spain, but probably around Europe, who are trying to exploit this situation and are actually scammers claiming all sorts of things to get the hands on your money (just as there are rogue companies associated with all aspects of timeshare)
If it were me, with a reputable company such as MVC, I would
Firstly, do as VacationForever suggested and contact the resort directly just to see what they have to say.
Secondly, contact the UK Timeshare Consumer Association (TCA) as they don’t have anything to gain so should offer fair advice
Thirdly, if you want to proceed, use a company who the TCA might suggest.