Unauthorized transactions

Hi I receive a sms message from my bank that there was R707.81 withdrawn from my account. Went to Capitec Bank to ask for what this was drawn. The bank confirm that it was a internet transactions from Brasil. They said I bought something over the internet. I told them that I don't have any knowledge of this pursues and that they must stop it immediately Then they told me that I must contact them personally and ask for my money back. The side is codescash.com it is situated in Brasil. I never even heard of this side. So that is the kind of help I receive from Capitec in Kimberley