Hello there, Thank you for reaching out. We understand you're encountering errors when attempting to enable SMS validation. We're sorry to hear of this, as we can imagine how this would be worrying. If you haven't yet done so, as a first step we would recommend verifying whether you encounter this error when using different browsers, or an incognito-mode browser. For more information and troubleshooting related to SMS validation, please see our [url=https://help.bungie.net/hc/en-us/articles/360054873751-SMS-Validation]guide[/url].