surcharge - noun

an additional charge (as for items previously omitted or as a penalty for failure to exercise common caution or common skill)

surcharge - verb

• charge an extra fee, as for a special service
• rip off; ask an unreasonable price
• fill to capacity with people
• print a new denomination on a stamp or a banknote
• fill to an excessive degree
• place too much a load on
• show an omission in (an account) for which credit ought to have been given

surcharge - thesaurus

fleece   gazump   hook   overcharge   overload   pluck   plume   rob   soak