False information submitted to the credit bureau

I wanted to apply for a home loan, but with a rude surprise I had to find out that Discovery bank has put my full outstanding balance on my credit card as my monthly installment with the credit bureau, which makes it seems as if I am completely irresponsible with managing my finances. I am a loyal customer, and always pay more on my credit card than required. I have tried for 5 days now to get this corrected with no joy. I have spoken to 3 of their bankers, Carl, Rachel and Dudu, as well as Charmaine whom is in their credit and collections department with not getting any joy or resolvement on a mistake made from their side when submitting my information to the credit bureau which is false. I am considering legal steps now, and would definitely not recommend Discovery bank as a bank to consider handling your finances. Their service is extremely poor with no customer service provided with urgency when the mistake is from their side. Enough is enough