How do I relinquish diamond points

I have a timeshare at Westgate and after my husband passed away I could no longer afford it. I struggled and paid off the mortgage but have not paid the maintenance for 5years they are now chasing me for €7500. I feel let down by them as they totally lied when they sold us the weeks.

I am in a timeshare with Azure where they said I signed up for 65 years. I really am not sure about it. We want out as it is not feasable or affordable for us

I bought a week way back in the early ’90s at Puerta Calma resort in Puerto Rico in Gran Canaria. I paid over £8k and it came with 2 years free fees.
Roughly 6 months after the purchase I realised it would be of no use to me. I contacted the resort repeatedly informing them I did not need the week I purchased and could refund my money or as the management of the resort could they resell it for me. I never got a response to my numerous requests.
Then I started to get invoices for the annual fees. Again I contacted them again I was ignored. In voices kept coming for several years then stopped and I’ve heard nothing since! I honestly believe I was robbed of the £8k?