It's a mistake in the Design Crowd System. The prize single payment of $600.

Thanks for the invite :)
I'm going to submit my design concept for the brochure.
Please have and give me some feedback please.
Thanks in advance.

Thank you for your invitation

Thank you for the invite, I am busy with non-contest work, so do not have time to look at developing a Brochure for your company.
I trust you will find something suitable.

Best Regards,
Karen