A former top Post Office executive has refused to apologise for her role in the Horizon IT scandal, insisting: “I didn’t knowingly do anything wrong”.Angela van den Bogerd began her evidence to the Post Office Horizon IT Inquiry by saying that she is “sorry for the devastation” wrought on subpostmasters and their families.But when pressed by Inquiry counsel Jason Beer KC, Ms van den Bogerd insisted she had been unaware of critical flaws in the Post Office’s IT system.“You make no concession or admission that you did anything wrong”, said Mr Beer.Ms van den Bogerd replied: “I didn’t knowingly do anything wrong.”