*****line of Standard Bank

I detected a *****ulent transaction on 25 June - I made several calls to the *****-line - but with no success - on 27 June i went to the bank to cancel my card and to report the ***** activity. They told me the ***** service department will contact me - till now, 3 July I had no feedback from the ***** service department. I again sent an email to the ***** service - with no feedback. I also tried the bank app message service to the ***** department - with no feedback ?