If you're looking for your latest invoice, or an older one, it's easy to find in Bubbles.
First, click on the dropdown where your workspace's name is, then click Workspace settings:
Assuming you're an Admin in the workspace, you'll see your plan type at the top of the panel that appears, with a Manage button. Give that a click:
Note that workspace members without the Admin role cannot access workspace settings.
The next page that loads will be your Stripe billing dashboard. You may need to scroll down to see the Invoices section at the bottom. There you'll find a history of your invoices from Bubbles:
Finally, click the arrow icon next to the date to open the invoice in a new tab:
