Problems with the passport and CFA username

<p class=”_1qeIAgB0cPwnLhDF9XSiJM”>Pleased to introduce myself, this week I have taken the CFA level I and I had a problem that I don’t know how to solve.</p>
<p class=”_1qeIAgB0cPwnLhDF9XSiJM”>My username and my passport name don’t match exactly, as my username is Alex and my official name in my passport is Alexander. Even so, the person in charge of invigilating the exam let me sit the exam but warned me that I had to change it during the break, as she was not official CFA staff, she didn’t know that the process takes time and has a deadline to be processed. I couldn’t send the email and sat down to do the second part, I am happy with the result of the exam but I am worried that somehow the CFA will disqualify me for not matching my name exactly with my passport. In the event that I pass, would it be possible to change my username for the second exam and not be asked any questions because I sat the exam under a different name or will I be disqualified even if I pass?</p>
<p class=”_1qeIAgB0cPwnLhDF9XSiJM”>Thank you very much.</p>