McCarthy wants to debit account for a product I refused.

I am highly annoyed with this Bidvest Club Mccarthy Memebership. I received a call yesterday (29/07/2019) where I explicitly told the lady that called me that I am not interested in the product. Yet she went ahead and signed me up and I receive an sms with a reference number ***. I am not interested in this membership make sure that this thing is cancelled even before you try and deduct any money from my account since you had all my information from God knows where. Since your calls are recorded you should ensure that you listen to me explicitly saying I do not want this product, should you deduct anything from my account it is tantamount to theft.