Neb. Rev. Stat. § 59-1728

In selling, leasing, or offering to sell or lease a seller-assisted marketing plan in this state, sellers of such plans shall not represent that a purchaser's initial payment is secured in any manner or to any degree or that the seller provides a buy-back arrangement unless the seller has, in conformity with section 59-1751 , either obtained a surety bond issued by a surety company admitted to do business in this state or established a trust account.