You are welcome.
Trouble is, most of us love computers and are often found at the keyboard odd times of night or weekend. So if an email arrives it may get answered immediately (It is hard to remember back to a time before broadband when people actually had to go collect their emails instead of them arriving automatically with a little "ping", having been redirected first through Google GMail's excellent free spam filter and then from office to home). Personally I haven't yet got a Blackberry to allow me to receive and answer emails anywhere in the world at any time, but from recent train journeys I see that I am one of the few who doesn't do this.
So I am pleased you got good service that night. But don't expect it every day.

And best wishes for Christmas to you.