standard bank collection department took R5000

On the 05/09/2015 standard bank transferred R5000 from my business account into my personal account which is handed over to Anthony and Richard for collection. As per my agreement with them I am paying R500 per month towards my personal account and they had no business in taking my money without consent. I have spoken to many agents from Anthony and Richard and many staff from different departments at Standard bank all of whom cannot assist to reimburse my money. Why should I be communicating to third parties when I am a client of Standard banks. Nobody responds positively to any emails they always pass it over to another department or staff. This is absolutely unnecessary and unprofessional for an institution like Standard bank. It Is already over a month and even going into the branch does not help. I'm highly frustrated!