Let us understand that retailers use the term "Conditions Apply" as a strategy to sell their products or can we say it is a marketing jargon.
Whatever the repercussions it is evident that it is inclined to push the scapegoat like us (consumer) to buy and also can be interpreted in favor of the shoppers that "Beware there are some hidden costs to be borne by us".
Either way it is a blunt hogwash which works well as a negative marketing.