With the submission deadline fast approaching, a small minority of authors do not appear to receive our automatic confirmation emails when submitting abstracts. All of the queried submissions have been successfully received; the problem is related to automatic email confirmation system alone.
For additional confirmation, a list of all authors of successful abstract submissions to the system can be found here.
New submissions to the system should immediately appear on this list. Authors who are unsure or would like additional confirmation should contact the LOC (either by email or on Twitter).