Vodacom has bridge their contract with me

I would like to share a review about Vodacom.

Firstly I took a contract with the Vodacom Service Provider. The contract I took was for a Samsung A12 mobile phone. When the phone arrived it arrived with two SIM cards. One SIM was for my contract and the other they gave me as a promotional SIM, atleast that's what they said when I called to ask why the delivery came with two SIMs. They also said that the SIM will stop giving me promotional data after 3 months. But to my surprise after 3 months they started billing me for both SIM cards. I called to understand what was happening. They told me that it was a new law that they have to start billing promotional SIM. Which I had no contract with. I tried telling them to cancel the data on that promotional SIM, but they claim I can't cancel it as it is linked to my main SIM card or contract. So far I have been paying 3 times the amount of money I should be paying and it's been happening for the past 4-5 months now.

Secondly they are making me pay 3 insurances in different amounts. I called them 3 months ago and they promised to fix it but nothing has been fixed till today