Whenever the commissioner has reason to believe that any cooperative association is not qualified, or is not performing the functions necessary to receive payments pursuant to sections 21.62 and 21.67 of this Part, or for any other reason such payments should not be made, he may suspend such payments and shall hold them in reserve until after a hearing has been held and a determination made as to whether such payments should be restored or distributed to all producers. The commissioner shall proceed promptly in holding such hearing and making such determination.