Taking money without my consent or knowledge

I gave birth 5 weeks ago and the discovery medical aid stipulated that the first 30 days of your baby’s life is covered for free. My medical aid went from R5886 to R6235 due to the increase which I was aware of as of the 1 July 2021. Discovery did not notify me as to how much my baby’s contribution would be and when we would start paying for the baby . Yesterday I woke up to R9029 going off my bank account for medical aid with no indication why . I have no income coming in as it is due to maternity leave and then they debit an additional R2794 without my consent. This is horrible and not right , now I have to stress for the rest of the month as to how I’m going to pay the rest of my bills .