Can I pay with a debit card?
Can I pay with a debit card
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Unfortunately no.
See How to make Apple Card payments - Apple Support
The “closest” you can come to paying w/ a debit card would be to pay w/ your AppleCash “virtual prepaid” card.
However, the normal payment method is via a debit directly from your bank account; effectively “as if it were” a debit card transaction.