ACo was a registrant which, in order to promote sales of its products, provided purchasers with a chance to win a cash prize directly from it by participating in a "game of chance [which] is conducted through having certain labels affixed to a product's packaging." In finding that s. 188(1) did not permit ACo to claim an input tax credit with respect to the payment of the cash prizes, CRA found that the promotional contest was not itself a business or an adventure in the nature of trade, but instead was part of the retail business which it promoted given the "high degree of interconnection and interdependence between the retailing of products that are taxable for purposes of the GST/HST and the promotional contest."