undercharge

/ˌʌndərˈtʃɑrdʒ/
verb
  1. To charge someone less than the correct or expected price for something.
    • The cashier accidentally undercharged me for the groceries, so I pointed out the mistake.
    • If you undercharge customers too often, your business will lose money.
    • The repair shop undercharged for the parts, but the labor cost was fair.
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Antonyms
noun
  1. An instance of charging less than the correct or expected amount.
    • The undercharge on my bill was only a few cents, so I didn't worry about it.
    • An undercharge of ten dollars on the invoice caused confusion in the accounting department.
    • The store's policy is to correct any undercharge before the customer leaves.
Antonyms