Rich "Greeblen" Schmelter, EQ EQII EQOA Customer Service Manager, posted on the official forums:

Greetings Norrathians!

In-Game customer support will be limited during the July 4th Holiday this Friday to allow some of our staff to spend the holiday with their families and friends.  However, we will have some dedicated GMs working on the holiday to assist with your in-game needs and we greatly appreciate your patience if you experience a longer then normal wait.

Phone and live chat Technical Support will be closed on 7/4, but we will be offering limited support via email during normal business hours.

Have a fun holiday weekend!