Vodacom upgrade gone wrong - incompetency and inefficiency

Hi, I have been with Vodacom since 1998 (23 years of loyalty). Last year 24th November I received a call from a vodacom consultant *** offering me a contract upgrade. She offered me a 600GB data (300 GB day, 300 GB night) @ R299 pm... sounded like a good deal so I accepted the offer, I asked her when it will be activated and she said 1 December 2021. Its 2 months later nothing happened, on 03/01/2022 I called vodacom to enquire and follow up, they promised to investigate and revert back to me in 3 days... 11 days later on the 14th I call again, they said they are escalating and will call back within a couple of days, today 25/01 I called again and I was told that nothing was captured and recoded and as a result they cannot help me. The then offered package is no longer on the system and there is nothing that they can do, I must just look at whats on offer and choose something. This is an unfortunate situation and experience, I am hard done and am expected to suffer for vodacom's incompetency and inefficiency .... what a shame