Bad customer service

Investec is regarded as one of the best private banks in SA but unfortunately for me since I was moved from my previous banker at Investec, my experience has been terrible with Jason Jonker. He makes promises but never comes back to me with responses. I ask simple questions about when my additional card will be delivered and I am told the courier company will call you to arrange delivery. I have been told the card has been embossed but delivery is yet to happen, even today. Secondly, interest on my investment that has matured is still yet to be paid to me and that has been promised several time to me. He told me, he will speak to the head of that desk and come back to me, but as usual that is still to happen. At this point I am tired of giving myself private banking experience since I have to follow up with Jason on every thing I require. I even escalated the matter to Tammy Sacks, who seems not to have done anything about this. I guess they don't take anything seriously. I am a working professional who does not have to be stressed about daily banking as I am paying R400 a month for private banking. I request that my monthly fees be paid back to me for the past 12 months. Thabi