surcharger
/ˈsɜːrtʃərər/Definitions
1. noun
a person or device that surcharges, especially a company or organization that adds an extra charge to something.
“The airline was accused of being a surcharger for adding unexpected fees to customers’ tickets.”
2. verb
to charge or add an extra amount to something, especially as a penalty or fine.
“The government surcharged the company for violating environmental regulations.”