(1) A child placing agency shall not solicit or accept a contribution from a prospective adoptive parent unless the contribution is equivalent in value to the cost of, and tendered as payment for, an adoption service actually performed for the prospective adoptive parent by the child placing agency.

  (2) A child placing agency shall not give or offer to give an individual preferential treatment in connection with an adoption service in return for a contribution from or on behalf of that individual.

  (3) As used in this section, “contribution” means the payment of money or donation of goods or services.