You may log in by tapping on the Log In button as per displayed below in our ShopBack app:
Once done, do type your ShopBack account email address, or if you have signed up for a ShopBack account with Facebook:
Select Continue with Facebook.
For email log in, once filled, you would then need to key in your password as per below screenshot. If you have forgotten your password, do tap on forgot password?, and an email will be sent to reset your password accordingly.
Once filled in your password, voila! You're logged in. :)