After filling in the registration form, click ‘Sign up’ to move on to the email verification.
In the next page, you are required to type in the six-digital code sent to your email address to finish the verification.
If the verification fails, you can still log into your account. But the system will automatically check if your account has been verified yet and ask you to complete the process.
Another way to verify the email address is to go to your profile and find the ‘Verify’ button there.