Unfortunately we don't get overtime. If we're called in on a day off, we just get a day off in lieu. All very well, but it does become very difficult to take the extra time off.
It's usually all the same people who are willing to come in. In my previous life, overtime was paid and it did a lot to increase motivation to cover sickness, leave etc.
The overtime subject has been brought up on many occasions at meetings with management and we always get the same reply.
"Forget about overtime, you will never get it. People will just have to learn to be flexible"
I think the company believe they bought our lives when they gave us our jobs.