@dark_star
that mail is to be ignored because it's purpose is to find out details about candidates who are writing the "exam ONLY", but since you've already passed their exam, it's already in their database that you've passed and hence they're asking you to ignore the mail because they don't need your details all over again
it doesn't imply, by any means, that you're out of the process because candidates who have passed the exam and failed the interview are considered "exam passees" and will be called directly for the interview once their "cool-off" period is over
that's just my understanding of it, i could be wrong