There isn’t a grouped call for this. We all 1 request/second at this juncture, so you should be OK. If not, you’ll get an email from me. 
I do have a question about general design of your point bot. What is the reasoning behind storing if they haven’t interacted? How do they get to your points site? It may not be worth it to store their info. Also, please make sure you read our developer agreement about data storage. There are restrictions.