Diamond resorts want to charge for being unable to use whilst in lockdown

Do I owe any maintenance fees on my triannual lockout at Weston?

We had a timeshare package with Club la-costa over 15 years ago.
Would our claim still be valid?
It was mid sold and we could never book when and where we wanted. We lost thousands of pounds.

We want to get rid of our Sheraton vistana resort timeshare in Florida. Been in contact with sell my time share company based there in Florida, they will then advertise it for sale at a cost of $1998. That includes all finalising documents and transfer fees etc. Does not guarantee sale. Is this my best option to relinquish my ownership? I just want to be rid of it and stop paying fees when I’m not able to use it. Other companies here in UK are able to do it but don’t give an exact price of what it would cost.

My husband and I bought one week of timeshare 1999 and another week at the same resort a few years later at Bahia Blanca Gran Caneria. We continued with maintenance payments till his death in 2004 I continued for a while then misguidedly tried ‘Sell my timeshare’ in 2006. They are under investigation by police and I got my £6000 back via sect 75 with Nat West about 2017. I used Preteorian Legal to get out of the annual maintenance contract as they broke off their contract with Bahia Blanca via a Tenerife address who owned the site.
However the initial outlay of £12,000 I am still out of pocket. As I am now 67 years old this money would now be useful to me. I was informed last year the company we bought our first year with at Bahia Blanca sold the business on 2000 and we had no new contract with the new owners for maintenance but we paid it never the less