You mentioned panel...so this wasn't a one on one interview as indicated on the cadetship website? Do you know what is involved with the rest of the process? Further interviews and the likes or are they making a decision from the assessment day
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The email my son received from virgin about the recruitment process is slightly different to what they say on the virgin website.
I'm only guessing here, but I'm under the impression they make a decision from the assessment day and if they call you for a further interview it is because you have been accepted in and they just want to double check that your the right person for the cadetship and to make sure you have sorted out your class 1 medical etc.