Tie-in sales are one of the major consumer rights issues and are typically banned in most market economies. They occur when a seller conditions the sale of one product or service on the purchase of another. In Brazil, the Consumer Defense Code, under Article 39, Subsection I, expressly condemns this practice. Meanwhile, Law 12,529/2011, which structures the Brazilian competition defense system, establishes in Article 36, Subsection XVIII, that tie-in sales constitute an infraction against the economic order.
A quick internet search reveals some familiar examples. One of the most frequently cited is the ban on consuming popcorn or other food not purchased at the movie theater. The recurring practice of selling fast-food meals bundled with toys and giveaways also violates consumer rights, as does the notorious minimum spend required by many bars and restaurants. This infraction can also be seen when a car dealership sells a vehicle and pressures the buyer into purchasing insurance from the dealership itself or an affiliated provider.
