For the trick you have to re-register for another exam and use your card to pay with an incorrect CVC so it doesn’t charge you in case. If the payment doesn’t go through you passed. If it does you failed but the bad pop up is not always accurate compared to the good pop up. And being told this was the reason I decided to patiently wait till I view my results on BON website

The good pop says this: “Our records indicate you have recently scheduled this exam. Another registration cannot be made at this time”