I have a *A award booking, and I'm attempting to get seat assignment. So I call Turkish 800 number for the US. I go through the menu, selecting changes to existing reservation. I get the following recorded message, not quite verbatim:

"Our office is presently closed. Our reservations hours are Monday through Friday, 9am to 8:30pm Eastern Standard Time."

As I type this, it is 7:46pm Eastern Daylight right now. I've tried to call twice today. Where else can I call?!