I canceled my order after 10 minutes because I forget to apply a coupon.
According to their own instructions: I cancelled the purchase then I received a message by mail confirming the cancellation and refund so I proceeded confidently to make the purchase again and apply my coupon.
Although I followed their own instructions they took the money from my card for the canceled purchase and they will return it in 10 days? It's crazy! I totally upset!
I fine from my Bank because I use more money that I had. ( I have two charges from two purchases :'( ).
The site of Groupon doesn't have a costumer service on live, only has several Q&A that never resolve your issue.