I recently received a letter from my employer's HR department telling me that they've given me too much paid leave and they would like the additional money back, however, we are disputing the actual amount I owe as I'm getting two different answers from two different areas of the company about whether the figures are correct or not. My regional office's HR guy (who passes information up to HR at head office to pay us) is saying that we accrue holiday on our paid leave, but the number of leave hours I've accrued according to HR at head office does not include any time I would've accrued while on leave.
To clarify, I work part-time, six days a week with a minimum of four hour shifts and our leave is worked out as roughly 12% of the hours we earn, so for working 100 hours, I'd accrue 12 hours of annual leave which can be broken down to three days at 4 hours each or less should I claim more, say two days at six hours each, and I can theoretically take as many days off as I like provided I have enough leave left.
Does the law state that I accrue holiday on the hours of paid leave I ask for? Or would this be something the company decides to include the hours of paid leave when calculating how many hours of leave I've accrued? I've checked my contract but it doesn't mention anything about it.
I've found plenty of information on this concerning unpaid leave and sickness, but not paid leave which was approved beforehand.