If the Dropbox link is closed (e.g. the deadline has passed), or Dropbox is showing an error due to technical difficulties, please send your files to Vidsy directly via email: community@vidsy.co
You're welcome to send your files as an attachment, or via Google Drive/WeTransfer etc.
For Remix (motion graphics) briefs, here's some handy info on how to package your After Effects file for upload.
For CGC briefs, we require legal forms, expense receipts, and any requested additional footage.