Pathetic service from Vodacom Mall of the South

I went to the Vodacom Shop Mall of the South on the 14th of May to do an upgrade on my contract. I was advised that they do not keep the Iphone14 Pro Max and only order on client request. The consultant made a copy of my ID, took my contact number and advised that they will call me on Tuesday/Wednesday 16/17 May. Indeed I received a called from the lady, her name starts with an M on Tuesday 13:03 to advise that the phone has been delivered. She however, advised me of the fact that I'm still left with 2 months on my contract which I disputed and advised her that I will check my statements to confirm if Vodacom deducted a Pro -rata including the cellphone instalment. I did not even understand why this issue raised. I then went to the store to process my upgrade and collect my phone on the 21st of May. Surprise Surprise!!! my phone was sold to another client because I did not confirm. The lady had attitude and told me that there is nothing she can do, she sold it because I did not confirm, so I must wait or go to another store to get an upgrade. My confirmation had nothing to with the deal. I'm disappointed at this level of service from Vodacom, I have 3 contracts with them (2X cellphone and Fiber) yet the staff treats customers like dirt, a number and we must chill and wait. I do not want to hear any excuses, all I want is for my phone to be delivered at my house tomorrow before I leave for a week trip.