Just reset your password. The steps are as follows:

1. Enter the Blizzard Game Pass login page and click the "Unable to log in" link below the login box.

2. Enter the email address of the same name as the Blizzard game pass (registered email address) and the verification code.

3. You will receive a confirmation email to retrieve your password in your Blizzard Game Pass email address (registered email address).

4. Click the Continue button.

5. Log in to receive the email, copy the verification code in the email, enter the verification code and reset the password.