There is no closing date to miss here, which is why the card says rolling rather than showing you a countdown: “The deadline for receiving entries will be the last day of each month. Any entry received past the deadline will be eligible for the next month's contest.” Late is not late; it is next month.
The prize is entirely non-cash and the page attaches its own retail values to it: the A&R Registry ($100), the Music Publisher Registry ($100), the Film & Television Music Guide ($150), The Indie Bible ($39.50) and a one-year Broadjam Primo membership ($199) — $588.50 by the organizer’s own numbers, against a $10 entry. The winner also gets a feature interview article on the site. Four runners-up each receive the Broadjam membership.
The gap on this card is the rights line. The contest page sets out the fee, the deadline, the prizes and the judging criteria, but carries no clause about what entering permits. We quote what is there and we do not fill in the rest.