You have had to pay 10% towards the kids education for at least the last 7 years.
From EK Web
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The eligibility of the following benefits is dependant upon the applicant’s unique personal circumstances:
• Education Support Allowance
Financial support towards the payment of core tuition fees is provided to staff in more senior positions. It is intended as a contribution towards the overall expenses the employee may incur for their children’s education.
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"...s provided to staff in more senior positions."