If I face such a scenario, I would verify the subscription used to instatiate the Denodo VM in the Azure portal by selecting the VM that has been created. The subscription id will be part of the description of the VM.
For your scenario, I would suggest you to remove the existing Denodo 8.0 Azure BYOL installation and re-install the **[Denodo Standard 8.0 (Hourly)](https://azuremarketplace.microsoft.com/en-us/marketplace/apps/denodo.denodo-platform-8_0-app-std?tab=Overview)** to avail the free trail option.
In addition, you could refer to **[Licensing Options for Azure Marketplace](https://www.denodo.com/en/denodo-platform/denodo-platform-for-azure)** section to know more about the differences between Denodo Standard and Denodo Platform subscriptions.
Hope this helps!