Unauthorized debit order

I gave my numbers and id number to a marketer to inquire about their products and he took my cellphone, took a picture of it and dialed a number. He also sent voice notes to a number on WhatsApp and made me agree to whatever that was typed on his phone (I couldn't see anything as it was hidden) under the impression that I'm agreeing to being by a consultant. He assured me that I will receive a call from a consultant and I was not informed about any amount that will be deducted from my account. I did not give him my account number or authorize any debit order. I received an sms of joining a funeral policy that we never spoke about and about a deduction that I know nothing about. I called the Clientele number on my debit information and I was told that the debit order is canceled but it is there on my Capitec app. The debit order amount is R270 and the maximum amount is R405 both of which I cannot afford as I'm unemployed and the money deducted was for nappies and milk for my 1 year old niece. Now there's a shortage.