Endless promisses

Since 2013 I have being struggling to close my account Excuses were eventually that I have to do fica before they can close my account. I took time off and did fica. The branch said they could not help me to close account I must phone the call centre. Needles to say the call centre wanted my card nr and I did not have a card anymore because I did not go to pick up my card because I do not use this account anymore. I came to a point that a paid an amount into the card every month just to maintain a good credit record. Well after 4 years and just being fed-up for paying for something I don't use for 4 years I get this snotty sms's that I need to pay. I called the number 3 times now and they all agree that they can see I have used my account in 2013 last and that it is fully paid up.....but still hellooooo they don't close the account. Know I demand from Standard Bank Card Division all the money back that I paid to just fill their numbers on their books because I cannot go on entertainning their stupidity and ignorance regarding my numerous requests to close my account. I paid every month just to keep a clean credit record and they took my money with a smile and did not provide me with any service. Enough is enough Dear Standard Bank keep in mind I got record of all my unnecessary payments that made to keep you happy and my pocket empty. Hopefully I would get some kind of attention now after 4 years