Desktop: Navigate to the menu options on the left hand side of your screen. Click on Settings.
Under Contact Info Settings, edit all relevant fields. Make sure to scroll all the way down and hit the purple Save Settings button once filled out.
Mobile: Click on the three horizontal lines on the top right handed side of the screen and click on the purple My Dashboard button. Locate the three black dots next to the dashboard display and click them.
A small pop up will appear. Navigate to the Settings option and click on it.
Under the Contact Info Settings heading, update your contact information. Be sure to scroll all the way down and click on the purple Save Settings button once finished to save the info.