Customer Complaint

I am n prestige customer and when i phone in to use the service via telephone as this was one of the advantages of being a prestige customer I am bombarded with security question that they get from the credit bureau. I think this system was introduced about 6 months ago and i have never answered 1 round of questions correct which causes a frustration. 1, customers were never informed only when we phone in.2, SA is not a first world country that all systems are integrated which means info requested is 100% accurate 3, is this focused on keeping ********** out of looking at the customers needs. I have laid a complaint not given feedback i have had numerous of conversations with agents and team leaders and i go through this every month. I am sure i am not the only customer complaining about this and a plan B needs to be put in place as this is not working. I spoke to Noktula Dlamini team leader very nice lady about my frustration and i want Standard bank to listen to my conversation with her and get this sorted out...i need action ASAP.