UnAuthorised Billing on my account

Travel Free has been deducting an amount of R 400.00 from my bank account, I have no idea of this company and this has been hapening for two months now. I do not have their contact details all I have is their reference number which is Travel Free/***7 SAGE. I would like them to stop this debit order as I have no knowledge of them or they can contact me on ***.<br> <br> Thank You