Discover stories by How long do I have to wait to withdraw money from Robinhood? [Brief Guide] on Vocal. call 1ー(888)ー860ー2948 To change the authenticator on Robinhood, call 1ー(888)ー860ー2948 begin by logging into your account and visiting the security settings, or if you're locked out, call 1ー(888)ー860ー2948