No response

I purchased an item on Groupon and notice I was charged twice for the same product. I contacted Groupon on 22 December 2015 requesting to cancel the order and did not receive any response from them. Then on 29 December 2015 i received both items and again contacted them with no response. <br> <br> To date I have not received any sort of response from Groupon. You cant even call them to speak to customer service as the phone goes dead.<br> <br> Can someone from Groupon please contact me!!!