12. Vendor or agent refusing to certify purchase of fuel
In case the vendor or his servant or agent shall refuse to certify the purchase of any fuel the owner of the engine or other person acting on his behalf may within 7 days notify the Chief Agricultural Officer, with a view to an investigation of the circumstances of such refusal; and in case of failure so to notify the Chief Agricultural Officer. No account shall be taken for the purposes of payment being made under these Regulations, of any fuel the purchase of which has not been duly recorded on the fuel purchase form as provided by these Regulations.