Ipad

I ordered an iPad. It arrived in a sealed box but it doesn't work. It says it needs to be restored. If you want to return an item, you have to do it via the groupon website BUT you need a tracking number. I was never given a tracking number. So after 2 days I finally received a tracking number. So a week ago I filled in the online return application. I have had no response. I have tried to phone the call center. All I get is a recording saying ' we are experiencing high call volumes, send an email'. But no one responds to my email. I want a refund so I can have the money to buy an functional ipad to aid in studying for my exams .<br> <br> I get ongoing emails advertising merchandise. It seems they have time to send those emails out but no time for real customer service