Nedbank took a problem and made it worse

I recently had problems canceling one of my credit card accounts. After a number of calls the account was still open. I logged a Hello Peter complaint to which they responded saying that \One of our resolution managers will contact you shortly to help resolve your complaint."No one has contacted me but I when I logged into online banking and I found that my OTHER credit card account had disappeared from the list and the one in question is still there!! I subsequently posted a follow up on the same complaint and have had zero contact. This complete disregard for my issues is shocking and this has become more than frustrating for me now. Nedbank"