Commbank are removing their current Credit Card and Personal Loan Insurance and refunding premiums to those who are not suited to the policies. They have set aside $16 Million to cover the premiums and interest in those cases.
To read a press release see:
https://www.commbank.com.au/guidance/newsroom/cci-and-pl-program-201803.html
If you think you may be an affected/eligible customer they recommend you ring 132221 if you have any queries.