Substitute Red Days: December 27th, January 3rd?

Does anyone know if we are entitled to a day off in lieu, the Mondays following Christmas Day and New Year's Day?

I'm just preparing my winter hols with my co-teacher, and was surprised to be told these days are not going to be given.

Online advice appears more mixed, so I thought I'd ask here - if anyone knows, I'd be grateful!

I know earlier this year several days were given in lieu; just a little surprised the same extension has not [apparently] been made for Christmas.

No we don't get those days.  I am afraid 2021 and 2022 we get ripped off on a lot of holidays and don't get them back.  There are 2 or 3 holidays that we will get the following Monday off.  Originally we were going to get more, but they scaled it back.  Chuseok, Seolnal, Children's Day, Liberation Day, and a couple of holidays in October we will get the following Monday off.  The rest, we get a kick in the pants. 

Thanks very much for replying - appreciate it!

No prob.  I got it straight from my co teacher.