Horrible service!

In september 2018 i upgraded my cellphone contract via cci over the phone. I was promised delivery over the next few weeks and someone else **********ly took delivery of my phone. I fought until december 2018 to have the upgrade cancelled. And afterwards i tried to upgrade on 4 different occasions without sucess. These people just never have stock. I dont understand how something this simple to do can take so many months. All i ask is a nokia 3.1 on made for me s for 169 per month. I am going to make this simple from my side. I need my phone in my hands by 13 feb 2019 with screen guard and jelly case. Or i take my "insignificant" business somewhere else. Shame on you mtn!