It is not really part of the pension, is it? It is an extra sum , above the pension, for a specific purpose. If that purpose no longer exists, the sum shouldn't be paid. Old people here get free TV licences. If they were living in France, would you expect the French TV licence to be paid for them? No, because the purpose of the provision no longer exists. Some people get disability allowance. If they ceased to be disabled, should they still get it? Of course not, because the purpose of the payment no longer exists. So it is with this.