My husband is contracted to work 56 hours per week. His main hours are 9-5pm but he works some shifts every week which push the hours up to 56.
When he takes a week of annual leave, his employer gives him 40 hours annual leave. If he takes a week off, he has to work extra shifts in the weeks beforehand or afterwards to cover the extra "on call" shifts he would normally have worked during the week he was off.
I'm not convinced this is legal. Surely if you are contracted for 56 hours, a week off is 56 hours off??