Vodacom stop *****ing our money!

I have sent a review 2weeks ago about vodacom and I am still awaiting feedback! I am appaled how pathetic their service is and I am fedup that we as consumers just have to put up with it. I migrated my contract to a lower package an had to pay a penalty fee. Now vodacom says I need to pay every month another amount although I have proof that I was told its only the once off. They are going to deduct my money at the end of the month and then I will probably get a reply. I am disgusted that a ******* company like this exists and we cant do anything about it. If I was the only one complaining about them I could understand their poor service but I have so many friends that tell the same story.