That is an ambiguous advertising, both for the writing and  the image. "A fifth of the salary may change your cards". In a hand there are four cards and  the fifth card, in the other hand, is in the air. First of all, most Italians do not know poker, but these lines are for those who play it.

The fifth card with the other four would give royal flush of hearts as the maximum hand, and so it suggests the advantage of having a loan (identity by similarity). The poker is a game of chance (identity by semantic contiguity ), and the fifth card remembers the fifth of the salary (identity by phonetic and semantic similarity). This fifth is not given, but  taken off,  a fact  translated even in a semantic opposition.  

It cannot easy be understood  which persuasion level this advertising  has.