The franchisee shall not, as to rates, charges, services,
or facilities, make or grant any undue privilege or advantage to any
party, nor subject any party to undue prejudice or disadvantage, provided
that the franchisee may establish reasonable classifications of customers.
Nothing in this chapter prohibits the reduction or waiver of charges
in connection with temporary promotional campaigns or providing a
senior citizen discount, provided the same waivers are provided to
all similarly situated customers.