transacted 4 370,00 from my account without autho

I was in durban on a holiday two weeks back and I was shopping at Shaka Marine. I was approached by a gentleman and he asked me to join their presentation. I went in and filled some forms and the lady Ameera asked me to see my bank card. I think she made a copy of my card because she returned it to me quickly. their presentation was about the time shares/ holidays. they asked me to join and i told them that i will think about it. on the 28 jun 2015 they transacted 4370,00 on my account without my knowledge or authorisation using the photocopy they made from my card. my debit orders have bounce and this will affect my credit profile badly. these people are vultures - what kind of business are they running and how did they got my password? i want my money back. when i called her yesterday she said she decided to transact my account because she was battling tomget hold of me on my cellphone