Section 11Moneys which should not have been paid may be recovered

s. 11

11. Moneys which should not have been paid may be recovered Where, after the commencement of this Act, any sum not payable by a tenant under this Act has been paid by him, it may at any time within four months of the date of such payment be recovered by the tenant and may, without prejudice to any other mode of recovery be deducted by the tenant from the rent payable by him to the landlord.