vacation

I have 3 games with my opponents having vacation for about 4 months now. They play other games but wont finish the game. How is that possible? I now offered to draw the games but no response. 

Vacation time is limited, so if it really has been that long, they should be close to running out of time by now.

If they are postponing completely lost games,  you can open a ticket and see about getting the games adjudicated.

https://support.chess.com/customer/portal/emails/new

https://support.chess.com/customer/en/portal/articles/1444860-what-is-vacation-abuse-

 Also,  I only see two games on vacation and that player hasn't been on in a month. That vacation is likely valid and they will either come back and play or run out of time: only a little over 2 days of vacation are left on those two games.