Yes Robinhood offer 24/7 customer service. Their support +1 (877) 391-6440  is available Monday through Friday, during regular business hours, typically from 9:00 AM to 6:00 PM Eastern Time.  Website URL: https://support.google.com/edu/classroom/thread/331817248?hl=en&sjid=18368491424556896446-NC Country List: United States