Vodacom false sales and lack of customer service.

I called vodacom to find out when my data contract will end as I wanted to cancel it. I then got a call from a Vodacom consultant saying as I have been loyal to Vodacom they have an offer for me whereby my data contract would now in include a tablet plus data sim and it would not impact the duration of my current contract. I asked the agent numerous time if she is certain it wouldn’t impact the period of my contract and she reassured me numerous times that it would not. This was not the case my contract should have ended August 2026 but I am told I extended my contract to I think they said December 2027. I asked the call centre agent to pull the recording and escalate the matter which is what she said she would do I have since heard nothing from Vodacom. Can you please resolve the issue with urgency. Contract sim cell number ***.