No delivery of device on contract

I ordered a tablet that I could not find in store online and did not hear from them and then called to inquire about the order and the agent made a new order with incorrect address details. I have been waiting for deliver for 3 weeks and everytime i call I'm told it is is consignment with the courier and when directed to the courier they say they've fast tracked it for delivery. I kind of needed this device ASAP and when I went in store I was told there's nothing I can do, I just have to wait for them because cancellations might flag me for *****. Very disappointed with how no one is trying to follow up with me regarding this. I have to be the one to reach out and nothing changes when I do