Samsung online store is failing to deliver my package and they are dishonest

I ordered a tablet online on the 2nd Of December and I still not have received the tablet and yet a received an email from Samsung stating that my order had been delivered- I received the email on the 13th of December, 2 weeks later by the way. However, the problem is, I do not have the package with me; I have no idea who it was delivered to. I have been calling Samsung since I received the email, each time I get a different person who says they will escalate the issue but they never do and every time I have to start a new enquiry. This is a very pathetic customer experience from a brand of this magnitude. I have been wasting my time calling them and they have been lying to me, saying matter is escalated and that they will call me back but they never do. I want my Tablet, this is the third week now.