Just received a text message from kogan, not sure if everyone gets the same offer but nice to see it come through!

I'm on the 20gb plan as other members confirm what they received I'll update this post

Okay seems regardless what plan you are on you'll receive the 3Gb Bonus :)

Wish it happened yesterday as I was at 98% and reset at midnight but needed to pay $5 for the topup dang it :P

Hi, Great news! We've added 3GB of FREE bonus data to your account. Bonus data expires in 30 days. Kogan Mobile Team