Upon default under any condition of such bond or other security, the Commissioner of Agriculture may give reasonable notice to producers to file verified claims, fixing a reasonable time within which such claims shall be filed. The commissioner shall examine each claim so filed and shall determine and certify the amount due thereon. He may bring an action upon the bond or take such other action as may be appropriate or necessary to convert the other security for the use of such producers and, for the purpose of such action, the certificate of the amount due shall be prima facie evidence of the facts therein stated. If the recovery upon the bond or other security is not sufficient to pay all claims filed and established, the amount recovered shall be prorated among the claimants.