Where by this Act or a notice or order issued thereunder, the public is required to do or to refrain from doing anything, a person who fails to comply with such requisition shall, if such failure is not an offence punishable under any other Section, be liable,
(3) No occupier of any building or land shall be liable to pay more money in respect of any expenses, charged by this Act on the owner thereof than the amount of rent which is due from such occupier for the building or land in respect of which such expenses are payable at the time of the demand made upon 'him or which, at any time after such demand and notice not to pay the same to his landlord, has accrued and become payable by such occupier, unless he neglects or refuses, upon application made to him for that purpose by the Municipality, truly to disclose the amount of his rent and the name and address of the person to whom such rent is payable but the burden of proof that the sum demanded of any such occupier is greater than the rent which was due by him at the time of such demand or which has since accrued shall be upon such occupier:
Provided that nothing herein contained shall be taken to affect any special contract made between any such occupier and the owner respecting the payment of the expense of any such works as aforesaid.