What a lot of educational institutions/after school/activity clubs do is to state that all holiday has to be taken out of term time. So they have to take their 11 days after the end of term.
I had calculated to 11 days, but it seemed alot for a part time/term time only worker.
Just a thought, you state holiday end date, is this the end of the school holiday? I had assumed it was the number of weeks they had worked to which they were entitled to holiday pay.
Also (and I'm sure you'll know this) but the 11 days represents their normal working day, so if they work 3 hours a day the holiday pay is 3 hours per day as well.
__________________
John
Any advice given is for general guidance and professional advice should be sought applicable to your circumstances.