Groupon, the largest Internet daily-deal site, is being investigated by Britain's competition regulator over concerns including unfair promotions and exaggerated savings.
The U.K. Office of Fair Trading has been looking into Groupon's British unit since July and expanded the probe after receiving a complaint from the country's advertising watchdog.
"Given Groupon's track record, we have serious concerns about its ability to adhere to the advertising code," the Advertising Standards Authority said in a statement. "It is in the public interest that we refer the matter to the OFT.".... Read more.