Emails From cox help@cox com not being received

Today, 10/10/2022 I sent a 6th email to Cox.Help@Cox.com from a different email address than the previous 5 emails, and requested they reply to both addresses which they did and the reply was received at both addresses.  So the speculation that something was wrong with my email settings was bogus.  The reply was that they were working on an open ticket number.  I did a live chat and they were able to provide me the ticket number.