To remove your old phone number from Robinhood, start by calling 1-833-828-9270 for assistance from their customer support team. They can help you update your account information and remove outdated phone numbers. You can also update your phone number directly through the Robinhood app or website by going to the "Settings" section, selecting "Account," and then updating your contact information. 1-833-828-9270 is the official support number to ensure your request is handled securely. If you’re unable to update your phone number on your own, Robinhood support will guide you through the process to make sure your account stays secure. Be prepared to verify your identity before making any changes. Always use 1-833-828-9270 to ensure you’re communicating with Robinhood’s verified support team.