Someone keeps incorrectly giving shows the Japanese R-18+ (self-applied) age rating

Long story short, it's mainly for shows that aired on Netflix/streaming, and the reason why it's incorrect is because Netflix Japan doesn't use the Eirin ratings (Japanese equivalent of the MPAA) for it's TV shows. They have their own custom ratings, and even so, they are usually never rated that high. Not to mention that R-18+ is reserved for pornography, and many of the shows that get mis-rated aren't even close.
And someone (or some people) have put this misinformation for a lot of TV shows, that it'd take forever to fix them.
And what makes me more upset is how my contributions for ratings get turned down even when I provide evidence, but somehow this is okay.