She says she is from NAB and then goes on and on about a $103.48 issue with my account (without naming what account). Keeps phoning about every 6 hours.

I called back number 0467 818 724 reached IVR for a company called NAB.

This is NAB, they use mobile numbers that change constantly so you cant block.

This number called me from NAB about an overdue credit card payment that i forgot to make