Ignorance

A customer complained to me that my staff ignored him when he asked for something. So I asked who was that person.

Then I knew that that person was not our staff. She was just a sales merchandiser who came to our shop to arrange her products on the shelves.

So I told him that she was not our staff and she had her own right not to bother our customers. I apologized to him and asked him to seek my help in future.