[Prompt] Did you ever deal with difficult client/customer? What did you do and what it cost you ? share your experiences?

Currently dealing with a difficult customer. I did as instructed but the person thinks I don't understand the instruction. The work I am currently doing is going to hurt my reputation as a good communicator. I am always known for a good one but I sense, I am going to lose it. So, there's that. Did you ever have experience like that?

Picture courtesy : pexels