overbill
verb[IorT]
uk/ˌəʊvəˈbɪl/usCOMMERCE
tosendsomeone aninvoicefor agreateramountthan theyowe:
Anauditconcludedthecompanyallowedsystemsto overbill forservices.
Someseethis as aninvitationforinsurancecompaniesto overbill thefederalgovernment.
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overcharge