Discovery Card just dont care about client service

OUt of the blue, on a sunday, I get a notification from FNB that my Discovery Gold Credit card , which was administered by FNB, got moved from FNB , over to Discovery Bank, Card devision. The balance on the card got moved there as well. No Problem, bu t I decided anyway to cancel the card since I dont use it and costs me R 48 a month to keep. So I logged in to Discovery bank, and proceeded to use the site to cancel my card. No response, acknowledgement or correspondence received. I wait a week, then send a direct email to : ***. Still no response. They have deducted a fee in this time on the card ( I had a positive balance when it got moved). I am going to make a serious noise If I don't get some feedback soon. tik tok , tik tok, tik tok....