All your registered information can be changed except for your Facebook/Google+ account (if linked to your Shopkick account). To change mobile number on Shopkick: 1.Click the left menu icon on the top left of the home page to access it 2.Scroll down and tap "Settings" 3.By clicking "Account settings", you can change your email address, phone number and zip code, then clicking "Save"/the checkmark. 4.If you would like to change your name, birthday, or gender, click "Edit profile" and hit "Save".