Is there a way to know which Pivotal Cloud Foundry
licensed version we are using?
I see there are some marketplace services offered free in Public PCF b
The public version will have almost all services enabled with various plans. The plans may include free tier.
The PCF setup for an organization purely based on the agreement with Pivotal. It will have only those services opted by your organization.
Please check with your Org Manager or administrator for PCF.