$350 Flu Test Bill—Was It a Mistake?

Has anyone else ever gotten a crazy bill from urgent care? We got charged $350 for a simple flu test, which seemed wild. When we called, they said it was a mistake and not to worry. Now I'm wondering how often this happens. Should I be double-checking every bill? #MedicalBills #HealthcareStories #FluTest #Health #BodyHealth