Bad service credit card

I keep asking for bank details to pay of my credit card But They reply I must pay on internet I'm 80 years old Is discovery so pathetic that they cannot help me to go to Absa and make a transfer I also need my 11 digit card number and bank details to settle my account BUT THEY SEEMS NOT TO HELP ME my cell *** or *** My I'd is *** my Health account is *** PLS CAN SOMEONE IN MANAGEMENT ATTEND TO THIS ? I DONT HAVE A CARD ANYMORE I DESRROYED THE CARD I WANT TO PAY IT OFF AND CANCEL IMMEDIATLY RGDS MRS SJ MULLER