It did clearly say directors AND key management personnel to buy...

It did clearly say directors AND key management personnel to buy in 10M shares/$840K (1M@$8.4c)

According to the latest notice of Change of Director's Interest Notice;
No.of Shares for Directors- 5,526,428 via placement and 1,071,428 via SPP, totalling 6,597,856;
$$ of Shares for Directors - $464,220 (@$8.4c) via placement and $60,000 (@$5.6c) via SPP, totalling $524,220;

Therefore!
No of Shares for Key Management personnel = 10,000,000 - 6,597,856 = 3,402,144;
$$ of Shares for Key Management Personnel = $840,000 - $524,220 = $315,780;

Simple maths