Thanks to the help of maxdamage
, I've learned that our contact form has not been properly delivering messages to me for some time.
For some reason, our mail service decided to stop delivering messages to our contact email address. Thankfully our system logs all of the outgoing messages, so they are not completely lost. The issue has been resolved and I'm going through logs to determine what messages I may have missed. If you've tried contacting me, have not received a reply and would still like one, please try again.