In this case the 3D Secure page that is loaded into the WebView first asks your to press a "next" button. Once next is pressed the bank sends a USSD to the phone associated with your card. You then reply to the USSD, and the Webview shows a "CONTINUE" button. Once you press "continue" the redirect is caught. However the html that is sent to completeAuthorisation contains a pre-auth link with PaReq, TermUrl, MD, rather than the required form with MD & PaRes. Attached is the html that is caught.
continueHtml.txt