Impact of PayPal competition

I understand that PAYPal is entering the BNPL market in Australia with the intention of becoming the premier provider by reducing merchant commissions by 50% of what APT charges. They claim that their existing client base of 12 million Australians will enable them to become the number one provider fairly quickly. I would imagine their intention would be to raise the merchants commission once their competitors have gone to the wall. Any comments on this would be welcome.