Permission Email

I have emailed the record label DCD2 (info@dcd2records.com), Who are the current label who have signed my artist Fall Out Boy, asking for permission to use my chosen song for  my video. If I do not receive a reply, I will include a copyright disclaimer in my video description which should avert any issues. In my email, I have expressed that the video is purely for educational purposes, and explained my passion for the music genre and media studies. As the label only signs 7 artists rather than a larger amount such as Sony Records, I hope to receive a reply in the near future.