Absender: Nanni
Empfänger: Ea-nasir
Datum: somewhere between about 2334-2279 B.C
Betreff: Complaint regarding the copper
How have you treated me for that copper?
You have withheld my money bag from me in enemy territory; it is now up to you to restore my money to me in full.
Take cognizance that from now on I will not accept here any copper from you that is not of fine quality.
I shall from now on select and take the ingots individually in my own yard,
and I shall exercise against you my right of rejection because you have treated me with contempt.