Any good novels where the main character works in customer support?

Customer service and support roles are everywhere in real life, but they’re surprisingly rare as main professions in fiction. When they do show up, it’s usually in the background or played for humor.

I’m curious if there are any books where a main character works in customer service, a call center, tech support, a help desk, or another support role and where that work actually matters to the story. I work in a tech company, so anything in a digital or online support setting would be especially relatable, though not required.

I’m not looking for “retail for one chapter” or a throwaway job, but something that captures the human side of the work. Dealing with people, rules, stress, problem-solving, and emotional labor.

I’ve already discovered a few unexpected movies thanks to Reddit, so I figured it was worth asking here too.

If anything comes to mind, I’d love recommendations. Even better if you read it and thought, “yeah… this feels real.”