Yeh so purchased a Woolies gift card via their own site the other day, paid using my CBA credit card via Paypal as I always do and the CBA app pops up a message saying this is a cash advance, fees, interest etc etc.. Tap the notification and can't see any more info, transaction still pending so not sure what's going on.
Anyway, spoke to CBA. Since was still pending they couldn't tell much either but say me nothing has changed and no reason why it should have been charged as a cash advance unless it was the merchant or Paypal.
Transaction has now cleared and sure enough, there is a cash advance fee charged and I guess I'll see interest charges when the statement closes. They did say they'll refund me the fees for this one but just putting it out there in case anyone else gets hit with it.
Just don't know what will happen next time, going to have to go through the whole thing again?
Speaking to CBA, enabling gambling lock on the credit card should block cash advances. Enabled on mine now but haven't tried it again yet.
@mapax