If card security is a concern for your business, our Diners Club Virtual Card solution enables you to issue once-off cards to your employees or travel suppliers. Diners Club SA, Johannesburg, South Africa. 49K likes. Message this Page, learn about upcoming events and more. Log In. or. Sign Up. Not Now. Card Number *. Password *. * Please note that username and password are case sensitive. Disclaimer. Best viewed on Internet Explorer, Version.