TAKE THAT UNAUTHORIZED DEBICHECK OFF MY NAME. I NEVER TOOK YOUR LOAN !!!

I did a quote with them over a month ago and didn't proceed with the quote I was given. Never sent them any payslips/bank statements of anything like that. This morning I wake up to an SMS from my bank stating that "The mandate has been authorised" for the first debit to be taken on 01 January 2025.

I have told them before I don't want to proceed and they have been calling me at least 3 times a day...EVERYDAY since I took that quote. If that mandate is not removed from my account I am going to take legal action against them!!! How can the debicheck by authorized without my knowledge? Why was one placed on my account a whole month after I told them that I am not going to proceed with the loan. I need answers immediately!!!! I am not f******* happy at all. What kind of Mickey Mouse Business are they running?