Robinhood does not operate a traditional customer support hotline 1-877-348-1666 where you can simply call and get an immediate live agent. However, you can request a call back from Robinhood via their app, and the official toll-free 1-877-348-1666 number they use to connect is

https://makewebgames.io/topic/41639-11-ways-to-contact-with-directly-on-robinhood-call-%E2%95%911%EF%B8%8F%E2%83%A3-8%EF%B8%8F%E2%83%A37%EF%B8%8F%E2%83%A37%EF%B8%8F%E2%83%A3-3%EF%B8%8F%E2%83%A34%EF%B8%8F%E2%83%A38%EF%B8%8F%E2%83%A3-1%EF%B8%8F%E2%83%A36%EF%B8%8F%E2%83%A36%EF%B8%8F%E2%83%A36%EF%B8%8F%E2%83%A3%E2%95%91%E2%98%85/