Bad Bad Bad service

i have upgrade my phone via the online chat, spoke to Nkululeko and everything was good, sorted and checked. He asked me where should they deliver my phone, gave them my work address and cell phone number. Tuesday past still no phone, on the internet it says "next day delivery" and "your order is prepared and the courier delivers it to THE ADDRESS YOU PROVIDED ", Wednesday came, still nothing, got a sms from Ram couriers to deliver my parcel, wrong address and wrong cell number provided from Vodacom, phoned vodacom, spend 20 min on the phone got transferred 4 times between upgrades and after sales department, and spoke to 4 different people. then i went to online chat to sort it out and so forth, nothing have been changed and no info send to Ram couriers. And this moment i am not a very happy customer and if i don't get my phone today (1/11/2018) i will cancel my contract with vodacom and go to a competitor who are willing to sort things out immediately and not stretching it out for 3 days. I want feedback from vodacom why this has happen and why it haven't been resolved earlier and corrected. I want a very good explanation for this and if they still want me as a customer to keep.