Hey @ila​! Daniel from Customer Support Engineering here 🔧 

To install the Facebook app from our App Store, just click "install now" on the app's main page. If you are not seeing this button, you likely lack the required permissions to add apps to your workspace. In this case, you'll need to reach out to a teammate to give you the full permissions 👍

Hope this helps 👋

Thank you for your help.

how can i get in touch with them, what would be the fastest way to upgrade my account and get full permission please