Unauthorised debit

Sonar Investment has been debiting my account since Nov 2015. I noticed that this morning and called my bank who then gave me a number for Digicash. I called Digicash who gave me a number for SONAR INVESTMENT IN DURBAN. I called them and they played dumb and slammed the phone.<br> <br> the reference on my bank statement is: (1) SONAR5DJNTSONARIN151102 (debit went through on the 2/11 2015)<br> (2)SONARINVES***SONAR160129 (debit went through on 29/01/2016)<br>