Team admins can navigate to Settings => Billing to manage the account subscription plan, payment method and download Usage Report.
Subscription Plan shows your current plan, what your maximum allowed concurrency is and how many test minutes you have used this month. See an example below:
It shows that:
You can run tests with 50 concurrent user sessions maximum.
You have used 0 out of 60 test minutes for Load tests and 0 out of 100 API Test Flow runs this month.
Keep track of your monthly usage by using this report and if you need more credit, easily upgrade your subscription plan by clicking on Change Plan.