Robo calls purporting to be from NAB. No idea if that's true as I'm not about to respond to a damn machine.

Calling due to late payments... definitely NAB. I have already been called 8 times today, from 5 different numbers, and I've blocked them all. NAB take note - one call is enough.. this is borderline harassment.

I called back number (07) 3106 4381 reached IVR for a company called NAB.

Get regular calls from this number and it's verity with ending 80, -82, -89.
Called NAB customer service they didn't identified these numbers as any of their official lines. Calling back the any of the numbers you get to IVR asking straightaway for ph and your acct number for identification. Very suspicious. Blocked the numbers.

Have been getting calls from this number once or twice a day for the last couple of weeks. It is an automated voice message supposedly from NAB requesting details. When NAB was contacted they had no idea about the number and agreed it is unlikely they would contact their customers in this way.

I called back number (07) 3106 4381 reached IVR of company called NAB which is asking for my details so that the call could be transferred.