Not sure the Apple / Google Pay refers to just wireless tap payment
If it also counts online purchase / purchase within app and pay by Apple / Google Pay
then it will not be too hard to achieve
Many online shops or payment within app now accept paying via Apple pay / Google pay.
Eg. Chemist warehouse website can pay via google pay
For app payment, probably the easiest way is to pay to your Revolut account
I can confirm that paying (using Apple Pay) to Revolut using Citibank creditcard doesn't count as Cash advance (it does count as cash advance for Westpac credit card)
Good deal. The Apple/Google Pay requirement is pretty annoying though.