Complete Lack of Service from Groupon

I placed two orders with Groupon, one on the 31.08.2015 and the next one on the 01.09.2015. Per their terms and conditions delivery will take 10 - 14 working days. By the 21st September, I had received the goods. I emailed Groupon and spoke to them, the call center agent said he would come back to me regarding delivery. Two days no call back or response from my email. So I emailed and call again. This time I got told that the supplier had messed up and my goods would be delivered latest 06.10.2015. It is now the 09.10.2015 and still no goods. No call from Groupon and no responses to the numerous emails I have sent. I don't want my money back I want the good I ordered and if they cannot be delivered I would appreciate a call explaining why and then my money back plus the interest I have lost.