No delivery of upgrade after 6 days

I ordered an upgrade online last week Thursday. The delivery still has not arrived and when i enter the Waybill Address the courier service says they are unable to find my address. I have tried contacting vodacom multiple times over the past 3 days trying to see if i can rectify my address and constantly get given another number to call because each consultant is "unable to help with the problem" Further the waybill tracker states that they have tried calling and sms'ing me but i have received no sms's or calls and therefore am sure they do not even have the correct number to contact me on. Its ridiculous that the problem isnt getting sorted out as you make it seem like such an easy procedure. PLEASE can someone help as i want my upgrade!