Booked a trip to Azores for 10/3. Never heard back from Azores express and when I contacted Groupon, they told me to hold off 3 to 4 days because they were probably just backed up. Never heard from Azores express at all so when I finally did, my return flight was no longer available. So basically Groupon deals, even though it includes rt airfare, you have nothing reserved after you have paid and the airlines is focusing on filling the seats with the more expensive travellers. Shady practice!