(i) Under the Federal Government Staff Housing Board Act, a person shall be eligible to receive an advance from the Board if
(a) He is a member of the Public Service of the Federation;
(b) He holds a pensionable office in such service or is a contributor to the National Housing Fund; and
(ii) In the case where a person has previously obtained a housing loan from public funds, such a person shall be eligible to receive an advance from the Board if:
(a) He is in every other respect eligible for a loan under this Act; and
(b) The loan being applied for would be expended on the residential house in respect of which loan was previously granted from the public funds; and
(c) The amount of the loan to be granted shall not be more than the difference between the present cost or value of the house (whichever is greater) and that person’s current entitlement under this Act.