They deducted my money R897.88 from my Capitec bank without my consent these Croocks

This car insurance is useless, I called them to tell them, I have a new stable policy for my car,now this morning they deduct my money R897.88 even my Capitec bank blocked them to go in my account, I have proof for that,how can you deduct from someone's account without her authorisation?I want my money you're Croocks the lady I spoke to, she tried to convince me,but I denied, because i already have my new car insurance, I dont have a long lasting contract with you anymore due to your expensive insurance!!!reverse my hard earned cash as soon as possible