API Subscription missing entitlement - feature_not_enabled - /api/v2/users/{user_id}/refresh-tokens

Hello,
I have found this endpoint which would be a valuable reference for my custom revocation management - Auth0 Management API v2

However, i seem to get this response when testing it

{
  "statusCode": 403,
  "error": "Forbidden",
  "message": "Subscription missing entitlement",
  "errorCode": "feature_not_enabled"
}

I am currently using the free-tier. It sounds like this is not available on the free tier? Assuming so, how would I track down tier I need to get this feature?

Thanks!