You can report them https://support.chess.com/en/articles/8609526-what-is-vacation-abuseIf i were you I'd forfeit the game, block them and never play against them again
Vacation abuse

You can report them https://support.chess.com/en/articles/8609526-what-is-vacation-abuseIf i were you I'd forfeit the game, block them and never play against them again
I disagree with the sites' definition of abuse. Scheduling more games than you can handle within the time control, so you repeatedly take vacation, is abuse in my opinion. I've encountered a few opponents that turn 3 days per move into 5 days per move because they have too many games going on and use vacation in between every move.

https://support.chess.com/en/articles/8562517-how-do-i-report-someone
If you feel this is happening then please report them, can be checked then
Hi, I have one opponent who goes on vacation roughly every 2 to 3 moves. I am playing 1 day a move games. I have beaten him 3 times with no losses but the use of vacation time seems to be obstructive. He did a bit in the previous game but now it is ruining the whole chess experience.
Any advice? I am reluctant to resign and lose rating points.
thank you