Login via the CM.com website.
Step 1: When entering the login screen, you can select your preferred language.
Step 2: Right below, you give in your registered email address
Step 3: Next you fill in the registered phone number.
Step 4: On that phone number you will receive an SMS with a one-time-password (OTP). An OTP is a password you can use one time for a limited time only.
Step 5: As soon as you have entered the OTP you will automatically end up at your dashboard.
From there on you can select the apps you’d like to start using.