FNB ***** transactions

On the the 28th of March I had 13 transactions in my account within 3minutes unknown transactions which cleaned my account before I could even pay my bond and other debts, I called the ***** line which they told me it will be investigated which will 7 to 3o days what my I eat,go on my daily life went to my nearest bank in Horizon, Roodepoort where I was told to call ***** line on the progress with what money it's really frustrating because I've used this bank for years but I'm not getting any help I need, called the ***** line only to be told wait for the email I'm currently sinking in depression as I'm a single parent school fees not paid