*****ing money UNLIMITED

I received a call from The Unlimited, explaining their business, I was not interested but the lady asked my banking details, TO WORK OUT A QUOTE, I gave it to her, trusting that she would come back with a quotations, BUT they started taking my money from my bank account. I reversed it time and time again, I went to my bank and they've put a restriction on this, I wrote the business an email, which they ignored and just carry on and on and on taking my money. They did call me and I again explained that I am a pensioner who can not afford this monthly deduction, but they repeated and repeated taking my money!!!!!!!!!!!!! I did not sign anything!!!!!!