We are not sending keys out ourselves, the devs of the games are doing it themselves.
Due to that we cannot garantuee for every user to get the key they want.
We have per game between 500-100.000 key requests with on average 200-500 keys being sent out.
I also had a look onto your channel, and you have no channels connected, no videos on your content stream are not accredited.
Keymailer is for streamers, video producers, and review writers on websites. From your profile it doesn't seem like you are producing any content in that form, which is why keys are not being sent to you by devs that are checking your profile.