the problem is on our side not their side
[5:54:28 PM] Corrado Cruciatti: if we issue free of charge invoice now and then in next invoice we add some sort of additional charge like Handling or else then Divel is OK
[5:54:55 PM] Corrado Cruciatti: but then our Accounting have problem to balance the 4 lenses produced and the Handling charges received with same amoutnas total amount for lenses