Wesbank and Auto & General refuse cash back bonus

I have vehicle finance through Wesbank and the underwriter for my insurance is Auto and general, i have been claim free for over four years and Auto n general policy is that you get a cash back bonus. But i am being refused to get my bonus, i am already paying a higher than normal rate for comprehensive insurance. I feel wesbank are being ridiculously ********* and lost all respect for them, being an Fnb client i had trust i would get the same service but now feel like i am being ******. I have been religiously paying my premiums only to get told that i get absolutely nothing out. I will never recommend either company again. They say a business manager tried calling me but what a load of lies. I want wesbank to call me and settle my account so i have nothing to do with them and publish what ******* service they provide clients. They are ripping customers off but we dont see it because we blinded by trusting the name but that needs to be exposed before they disappoint more clients. To my understanding and i would like the insurance ombudsman input as well, wesbank are merely the FSP, the insurer is Auto n gen so i the client is bound by all the policies of the underwriter and wesbank are affiliated to them why is a client not entitled to cash back bonuses?? Furthermore nowhere does wesbank stipulate or raise awareness that clients are excluded in the underwriters policies?? Infact customers are bound by their terms and conditions as well!!