GROUPON INC 877-788-7858 IL
Showed up on my statement years ago and I fought the charge. I have recently discovered this charge on my statement again! I do not know how they get away with this but it is clearly fraud. I called and their automated system states that the hold times are 50 to 60 minutes! They must be ripping off a lot of people and or intentionally making it difficult to resolve this issue.