Vodacom bad service

I was contacted by service providers for Vodacom during October 2024 to upgrade my data line. I used to have an uncapped LTE data line. When I was contacted I was informed that my contract would stay the same with the same benefits for the same amount and on that basis I accepted the upgrade. During November 2024 my data ran out (first time since I had the contract) and was informed that my data line was upgraded to a 200 Gig line. I had to log a complaint so that they could listen to the recording. On Friday 29 November I contacted them again and was told that nothing has been done about my complaint as yet and I was promised that they will get back to me on Monday 2 December 2024. Nobody has contacted me.