I got a groupon for a facial at Emerge Beauty and called to schedule an appointment for a week out. I left a message after the voice mail informing that the business owner will get back to me within 48 hours...2, 3 days go by, nothing. I called again and left another message...again, a few days go by, nothing. So I called groupon to get a refund and was told that they've received calls regarding the same issue, that they were going to contact the business and I should expect the business to get in touch soon...another few days go by, nothing. So finally I asked groupon to refund me the $$...
I'm not sure if the groupon users were singled out in this case. Either way this is not how you run a business.