...
On the MasterPass™ hosted payment page a QR code will be presented to the shopper. The shopper needs to activate the MasterPass™ application on his/her mobile device, scan the QR code or enter the number displayed below the payment page QR code on the MasterPass™ application. The QR Code is displayed on the MasterPass™ website. For users who have already used the Standard Bank wallet, the code will be shown immediately when selecting to "Buy with MasterPass™" from the merchant site.
Once the customer enters their Bank PIN details or 3D Secure password and CVV, the customer is taken back to the merchant (via PayU)
...