Bad service Nedbank Credit Card

I am disappointed in the Nedbank credit card division. I was called to get a credit card and after a few months I had to go into the branch to change my address. I stood the whole Saturday morning with my fica, id and copies ect. The lady assured me that all my details would be updated. Hence, it is now February and still no one has changed anything on the system. I have called several times and WILL NOT BE GOING TO THAT BRANCH AGAIN WASTING MY TIME AND ENERGY, WITH NO RESULTS!!!! But they are quickly to call when you owe R50 rand. Maybe if I get a correct statement for a change I will know what to pay and with a better attitude! Will for sure be paying off this and close it asap