I'm due to return from maternity leave and my manager has agreed to let me take my accrued leave at the end of my maternity, as well as granting a flexible working request.
How agreeable my manager was came as a surprise as I got the impression prior to commencing maternity that there was bad blood between us (although perhaps I was wrong and it was just my interpretation).
Anyway, I had calculated how much annual leave I took in the 21/22 tax year prior to the meeting and from my calculation I still had approximately 60 hours to take. During my meeting my manager informed me that their records indicated I owed the company 52 hours, so 52 hours would be deducted from my 22/23 entitlement and the remainder would be how much I had to take. Taking 52 hours off of the current year's entitlement rather than adding on 60 means I am short by around 110 hours from what I had predicted.
I'm a bit nervous to upset the balance given how reasonable my manager has been, but at the same time with my flexible working request, 110 hours difference is about 6 extra week's worth of leave. This isn't a small company and so it's not like my manager will personally lose out if my calculation is the one that's correct, but it's the awkwardness of bringing it up I'm concerned about.
Would I be being unreasonable to query their calculation?