To receive notifications about your activity on uncommongiving.com, please ensure that you have "Text Messages" turned on in your Notifications setting.
To receive text messages in support of two-factor authentication, simply click that button to turn it on under the General tab/Account Settings.
If you are still not receiving text messages with these settings turned on, you may have previously opted out of text messages by replying STOP to 781-56. To start receiving messages again, reply to 781-56 with START.