(1) Extensions of credit to government or governmental agencies or instrumentalities;
(2) The sale of insurance by an insurer, except as otherwise provided in this chapter;
(3) Transactions under public utility or common carrier tariffs if a subdivision or agency of this state or of the United States regulates the charges for the services involved, the charges for delayed payment, and any discount allowed for early payment; or
(4) Licensed pawnbrokers.
(b) Mortgage lender and broker licensees are excluded from the provisions of this chapter to the extent those provisions directly conflict with any section of article seventeen, chapter thirty-one of this code.