NO NOTIFICATION FROM NEDBANK INFORMING ME OF AN EXPIRED CREDIT CARD

I currently have a SAA Voyager Credit card which has been in my possession for a good few years and is not being used. The card expired and to date I have not received any notification from Nedbank or its associates informing me that my Voyager card has expired. I am still expected to pay charges on the card even though there is no new credit card issued to me. I would like to cancel my card with immediate affect and have all my charges refunded. I will not recommend Nedbank or will not bank with them in a hurry.