It is a document issued by a bank
or other financial institution to a borrower who is
allowed to thaw a bill of exchange on the institution
and is accepted automatically. The
letter
of credit is used in local and foreign trade.
The buyer requests his bank to open an L/C addressed
to the seller in the foreign country or other city within
a country. The exporter or seller obtains the payment
by presenting all necessary documents which have been
accepted and returned by the importer or buyer. The
L/C becomes irrevocable when the seller is informed
of the credit.