fastest growing company ever are probleme – via WSJ.

Groupon said Friday it was revising its results for the fourth quarter after discovering executives had failed to set aside enough money for customer refunds. The company had reported a loss of $37 million for its fourth quarter. The accounting changes reduced the company’s revenue for the quarter by $14.3 million and widened its loss by $22.6 million.

The revision came after an unsettling discovery in late February. That’s when Groupon’s chief accounting officer told Messrs. Mason and Child that many customers had returned their coupons in January, said a person familiar with the matter.

What’s worse: the four-year-old company didn’t have enough money set aside in its reserves to cover those refunds, according to this person.

update: Here Are The 2 Biggest Timebombs In Groupon’s Dodgy Accounts