Ordered product thro Groupon - still waiting

I ordered a jewellery set through Groupon on 27 November 2015. On 9 December 2015 I phoned Groupon to find out when delivery will take place as I am going on leave on 11 December. They gave me a tracking number for Dawn Wing Courier. I phoned Dawn Wing they said they do not have the tracking number. Phone Groupon back now suddenly they say that Dwan Wing has not picked it up since 4 December. Groupon said they will escalate my query. Phoned again on 15 December, they told me it was not escaled on 11 December, they will do it now. Phoned Groupon again today 18 December, they cannot see any escalation, they will do it now. Dawn Wing says I must phone Groupon and Groupon says I must phone Dawn Wing. Everyone just passing the buck from one to the other. Groupon gave me a collection reference number but Dawn Wing does not have this number. This was ordered as a Christmas present - the product cost was R595. They have their money but I still have no product. No one is helping me out. I only want an answer when I can expect to receive it but no one is doing this. VERY VERY BAD SERVICE FROM GROUPON AND DAWN WING. HOPEFULLY OTHER PEOPLE DOES NOT GO THROUGH WHAT I HAVE BEEN.