Probably targeted. May be due to having looked at a list of Airbnb properties on my phone a few days ago.
The usual terms, 'Pay with your eligible CommBank debit Mastercard or credit Mastercard or StepPay and tap or select credit. Wait up to 14 days.'
Hope this helps someone who HASN'T just booked a stay. 🫠
I have it on my account, even though I haven't done anything relevant to Airbnb.