Definition of overcharges:
(v) :
(ambitransitive) To charge (somebody) more money than the correct amount or to surpass a certain limit while charging a bill.
(n) :
Any amount erroneously charged to a customer above the correct price for a product or service.
(n) :
An excessive charge in an account.
(v) :
(transitive) To continue to charge (an electrical device) beyond its capacity.
(v) :
To charge (someone) with an inflated number or degree of legal charges (for example, charging them with a more serious crime than was committed); to upcharge.
(v) :
(transitive, dated) To charge or load too heavily; to burden; to oppress.