Answer:
The advertisement did not use exaggerated or contradictory statements, but it did make misleading statements by implying that the product was the only solution to the problem it claimed to solve. The author wants me to buy the product and suggests that doing so will solve my problem and bring me some kind of benefit. The author wants me to follow this suggestion for the company's good, as it is clearly trying to sell the product. The author uses words like "guaranteed" and "proven" to try and convince me to buy the product and asserts that it is the best option available.