Melia has reduced the number of properties that I signed up for from 9 to 5 properties, am I still obligated to see this contract through?

Hi.
We had a timeshere with club le costa 10 yrs ago .
We even upgraded with them.
We tried to book holidays all over the world but we’re repeatedly told no vacancies.
We then opted out and had to pay £10000 to dl so but we had no choice as we couldn’t book a holiday with them .

Hello, I wonder whether you have any experience/knowledge of the Wimpen Leisure Management group for ElMarques in Tenerife. We owned three weeks at this resort which were purchased in 1995. Wimpen created a holding company so members could transfer their ownership at a cost (we paid £1000) to this holding company if they no longer wanted their timeshare. We did this and have received a letter confirming this relinquishment and stating that we have no past or future responsibility. This week I have been contacted by a legal company advising me that this may not be legally binding and offering to legally relinquish us for a cost of £6/7000. This has freaked me out and I don’t know who to turn to. Can you help?