surcharge

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

An overcharge; an excessive load or burden; a load greater than can well be borne.

A charge over the usual or legal rates.

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

To overload; to overburden; to overmatch; to overcharge; as, to surcharge a beast or a ship; to surcharge a cannon.

To print or write a surcharge on (a postage stamp).