Your pages are not deleted after the expiration of your trial period. As mentioned, can you check the database connection and look in Management Studio under sf_page_node table for your page (screenshot).
If you keep having troubles finding your pages, can you open a support ticket to further investigate the problem?
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items