UNAUTHORIZED DEBIT ORDER

I just received an SMS about a debit order for R95 (WOW- HOW CONVENIENT IS THIS) that will run from my bank account on the 25th July from More Life by Seebaluk Trading . I called the number from SMS *** which did not even ring, it just disconnected after every attempt. I made a google search and found the same number with an alternative number, ***, which was working. I asked the woman who took my call what More Life was and why have they sent me a message about the debit order which I know nothing of. She told me that they render various services like electrical, plumbing etc services should I require them, and asked me if I had received a call from one of their consultants. I told her I never received any call from them, and that even if I were to receive a call from them I do not need their services, since I already have an insurance that cover those services. Since when is receiving a call from a company an obligation to buy whatever it is that they are selling to you?? She asked for the reference number and my cellphone number (which I reluctantly gave as they already have sent me an SMS) so that they can cancel the debit order. I DARE More Life to produce the recording of the call OR the document which I signed for whatever services they claim to offer.