Where any sum or other consideration has been paid, whether before or after the commencement of this Act, by or on behalf a tenant to a landlord, in contravention of any of the provisions of this Act the Controller may, on an application made to him within a period of one year from the date of such payment, order the landlord to refund such sum or the value of such consideration to the tenant or order adjustment of such sum or the value of such consideration against the rent payable by the tenant.