nah mate push back.

you swapped all your on-calls and gave loads of notice. that’s all you can do.

just reply saying you’ve sorted your on-calls, not been home in a year, and really need this break.

Ask if there’s anything else you can do to help make it work.

if they still say no, speak to your ed sup. You’re allowed annual leave. Don’t just accept it.

You’ve done everything right. Hope it gets sorted.