I have an opponent who is constantly going on vacation because he has so many games going on (200+ recently). Is it normal that every time he goes on vacation, our game jumps back to 2 days on his side? It seems like to me that is a bug.

For example, his time goes down to 30 hours, he goes on vacation and he comes back at 2 days again.

I simply want to get this game and tournament round done, but he's too busy to play. I see that he is holding up several tournaments this way.

The vacation policy for a brief time was to take away 24 hours minimum for each use of vacation. Now the unused portion of that 24 hours is added to game time. So it has no effect in a case like this.

http://www.chess.com/forum/view/help-support/got-24hrs-added-to-my-time