The first ever recorded customer complaint comes from Mesopotamia and is over 3,800 years old (1750 BC).

It is a complaint to a merchant named Ea-nasir from a customer named Nanni. Written in Akkadian cuneiform, it is considered to be the oldest known written complaint. It is currently kept in the British Museum. Ea-nasir travelled to Dilmun to buy copper and returned to sell it in Mesopotamia. On one particular occasion, he had agreed to sell copper ingots to Nanni. Nanni sent his servant with the money to complete the transaction. The copper was considered by Nanni to be sub-standard and not accepted.

In response, Nanni created the cuneiform letter for delivery to Ea-nasir. Inscribed on it is a complaint to Ea-nasir about a copper delivery of the incorrect grade, and issues with another delivery; Nanni also complained that his servant (who handled the transaction) had been treated rudely. He stated that, at the time of writing, he had not accepted the copper, but had paid the money for it.

The “Complaint Tablet To Ea-Nasir” was found in the ruins of Ur inside an old Babylonian house, which may have been the residence of Ea-Nasir. The tablet was discovered and acquired by Sir Leonard Woolley, leading a joint expedition of the University of Pennsylvania and the British Museum from 1922 to 1934 in the Sumerian city of Ur.

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