Vodacom Bad service and ******

This is my 2nd review on the same issue, I did a review on vodacom being ****** a few months ago and to date, I'm still being charged for something that's free. I was called on 31March offering me a deal of minutes + plus 1 free gig data and a cellphone for R180, low an behold Decmeber 2021 I was told that they made a mistake, after contract has been signed and I now need to pay for the 1gig I'm receiving per month which is supposed to be free, I declined and rather asked them to cancel the contract since the free 1gig came on a Sim card that I can use because their stupid phones doesn't allow you to use a dual simcards, anyway fast forward 5months later I'm still paying for something that was supposed to be free and what I was given the option to cancel, vodacom had the best reception ever but worst service. I can't wait for this contract to end