Questione giuridica chiave
From which date could repayment of the housing allowance be required after a change in income?
Decisione estratta
Repayment could be considered only from 1997-09-01, because the effective increase in income had not been proven before that date.
Motivazione estratta
The court held that the decisive income increase was not demonstrated for any earlier period. The reimbursement assessment therefore had to start only when the change was established.