consignee of the above mentioned shipment, confirm that we are unable to collect the goods referenced above and therefore irrevocably authorize you to take whatever steps you may deem appropriate to exercise your lien according to the clause 13 of our Bill of Lading. We authorize you to sell the goods for the payment of all charges and expenses due to you in relation with this shipment and also for all previously unsatisfied debts whatsoever due to you by the Merchant of this Bill of Lading.