What's the longest youve had to wait to proccess your order on groupon?

I ordered an iphone 5 on groupon for black friday sale on 11/29/15 and its been 8 days since then. My order is still processing. This is my first time buying something on groupon so i'm not sure what to expect. Could it be due to the amount of orders they had? It says more than 5k bought. Or is groupon sellers usually like this? How long does it take for them to actually respond to emails?

I had to wait 3 weeks for one.