Horror experience

Signed up last week was told how much i will pay and will be debited end august. The very next day after joining they took 1600 from my bank account. I called in and spoke to the outsurance consultant he apologised and said that was not right and that he just reversed the money an it will be in my bank account within 48 hours that was 6 days ago. I want my money you stole from me and to not do business with you again.