When you submit the form, wait to see if any errors are reported. If errors are not fixed, it will not be counted as submitted.
You can save a draft of this submission with the "Save" button. The submission can be updated until the deadline. You must press the "Submit your challenge entry" button in order for your submission to be evaluated. Each creator entered above can update this submission until submissions close.
When this submission has been properly received, a confirmation email will be sent to each creator entered above. These emails should be kept as receipts. If they do not get this email, it is likely that the submission has not been received.