Shaw Academy complaint: Refuses to make a refund

I do not recommend ShawAcademy company.
I canceled the graphic design course before starting it because, one day after I checked my bank account, I noticed that the amount of £ 99.99 was stolen for a service they offered, which I did not have that intention at all to buy it. Due to this unpleasant situation, not tolerated at all and I do not accept such a thing to steal my money from my bank account for no reason, I chose to cancel the course and at the same time permanently delete my account and my personal data registered at Shaw Academy, following that after this incident, all my money should be returned to my bank account.
Of course, the operator at Shaw Academy ed to me,by email,that nothing more can be done because the payment that I made., nothing can be done, according to their terms and conditions.
I will go on to recover my money, because what they are doing is called fraud and they have no right to withhold my money, despite all their abusive rules.
Thank you for your understanding.