Okla. Stat. tit. 14A, § 14A-2-411: Referral sales

With respect to a consumer credit sale or consumer lease the

seller or lessor may not give or offer to give a rebate or discount

or otherwise pay or offer to pay value to the buyer or lessee as an

inducement for a sale or lease in consideration of his giving to the

seller or lessor the names of prospective purchasers or lessees, or

otherwise aiding the seller or lessor in making a sale or lease to

another person, if the earning of the rebate, discount or other

value is contingent upon the occurrence of an event subsequent to

the time the buyer or lessee agrees to buy or lease. If a buyer or

lessee is induced by a violation of this section to enter into a

consumer credit sale or consumer lease, the agreement is

unenforceable by the seller or lessor and the buyer or lessee, at

his option, may rescind the agreement or retain the goods delivered

and the benefit of any services performed, without any obligation to

pay for them.