3 weeks late and still no delivery

I bought an item from groupon goods which promised 48 hour delivery on 14 December. A few days later it stall hadn't arrived. I queried the call centre who stated that it had been shipped, and that sometimes it can be late. After a few more days I queried again, and this time was ignored.<br> <br> Now more than 3 weeks later I still haven't received it.<br> <br> Unbelievable!