I’m not sure if this is the right place to ask this but I had been off sick for a while recovering from an op (and covid) I returned at the beginning of January and have been told today that I need to get my remaining holiday entitlement booked. I had it worked out as I had 30 hours left however I’ve realised that they’ve still used my holidays in December. I get paid full pay when off sick so I’m confused as to why they have used them. When I asked my manager she said ‘you don’t expect to be off sick and still get loads of holidays do you?’. I’m horrified. Am I being unreasonable?