CLOSURE OF CREDIT CARD ACCOUNT

I would like to expose Nedbank for the bad service i have received in the past week that i needed them the most as my bank. I took a credit card with them 2 months back when they upgraded my account to Platinum Card Holder. They did a APO payment(4 them to deduct full payment of R31340)without me being aware. When i requested them to email me a letter stating that \R31340 was a once off payment"it will NOT be recurring. THEY REFUSED said no such letters can be given out. I have wasted so much money on calling the Card Division being transfered to all the departments it no help"