A Coupang banner hangs outside the New York Stock Exchange on the day of the company's initial public offering, March 11, 2021.NYSEThe South Korean government's dismissal of the findings of a congressional report alleging it's waged a targeted campaign against U.S.-based Coupang — commonly known as the Amazon of South Korea — is straining the relationship between the two global allies, officials in Congress and people close to the company told CNBC.CNBC spoke with nearly a dozen people familiar ...