As you are a paying member you get a certain amount of vacation time. If you are about to run out of time in a daily game you will automatically be put on vacation so you don't lose on time. It happens when you have about 1/2 an hour left I think. You can also put yourself on vacation in your daily settings to pause your games.
Holiday? I did not ask for holidays?

Ok, thanks for the reply. Yes, I´m a premium member and, honestly, I can only advise everybody who can afford it to become also a premium member, I never regretted it. And this is one more reason!

I am happy that I got holidays! You missed the point. The point was, I did not know WHY I had holidays
Yesterday evening I had still some 10 hours left for my next move in a dayly game. Today (about 9 hours later) I have a look and find a notice: review your game against.... That happens sometimes, so I had a look and then I found out that I´m on "holiday". Ok, that is not a great problem, but I´m really wonderning why. I did not ask for holiday (to tell the truth, I don´t even know how to do it). Maybe somebody knows, why and what happened.
Thanks