The Places API only returns businesses that have an address listed. The Service Area Business mode GeoGrid will return both businesses that have an address and businesses that don’t.
The Places API runs on your own Google Places API Keys and you will pay the bill directly. Google offer 200 USD Free Credit every month, and you can do nearly get 12000 credits using it.https://mapsplatform.google.com/pricing/
The refund period is 30 days, You will get a refund of the amount by deducting the used credit; for example, if you purchased a 100 USD plan and used 500 credits, you will get a refund of 50 USD.