Vodacom is trash!!!

My upgrade date keeps changing, my last device upgrade was in November 2019 thereafter the date keeps moving with no explanation from anyone, I called more than 5 times and spoke to different consultants and each one of them promised to get the issue sorted, when I ask to speak to manager there’s always a story!! Now my upgrade date has moved from September 2022 to May 2023.. How is this possible? I pay my contract on time and have never given them issues or defaulted in payment in the years that I have had this contract! I need answers and I want that device by the end of September 2022! This is nonsense.