Absolute clowns

My account has been closed because someone took an affidavit to capitec and claimed I had de*****ed them. Without finding out from both parties, myself and the complainant they just Disabled my account and canceled my card. I now cannot use the account and have been trying to clear my name but have failed How do you close your clients account who has been with you for 6 years over 1 person who claimes they have been de*****ed by me?

Something has to be done!