Ianser

Ianser was a merchant in ancient Mesopotamia, specifically in the region known today as Iraq, around 1750 BCE. He is notably recognized for being the recipient of an ancient complaint from a dissatisfied customer named Nani, who expressed his grievances about the poor quality of copper supplied by Ianser. This complaint, inscribed on a clay tablet, is considered the oldest recorded customer complaint in history, shedding light on the trade practices and customer service challenges of that era.