(1) For the purposes of this section, "qualifying discount program" means a membership program, club, or plan that entitles the member to discounts on services or products sold by others. The term does not include any discount program which in part or in total entitles the member to discounts on services or products sold by the seller of the membership or an affiliate of the seller of the membership. "Affiliate," for the purposes of this section, means any person who directly, or indirectly through one or more intermediaries, controls, or is controlled by, or is under common control with, the seller.
(2) Persons selling memberships in a qualifying discount program are not subject to tax under this chapter on that portion of the membership sales where the seller delivers the membership materials to the purchaser who receives them at a point outside this state.