Sounds like a pretty good deal!
Deal extended from 31 October 2016 to 31 January 2017.
Apply for a new Low Rate or Low Rate Gold credit card before 31 January 2017 and if you spend $500 by 31 March 2017 we'll give you $250 cash back. Plus, we'll waive the annual fee for the first year. Conditions apply*
a) Think again about that question and you'll figure it out. Hint: Think of the MANY first time CBA applicants.
b) What difference does it make?? If you're CC is in credit, you can xfer the credit balance to any account you like without being charged any cash advance fees or interest.