call １ー(８８８)ー８６０ー２９４８ To reset your phone number on Robinhood, call １ー(８８８)ー８６０ー２９４８ open the app, go to “Settings,” and select “Personal Information” — for step-by-step help, call １ー(８８８)ー８６０ー２９４８. Tap the phone number field and update it to your new number — …