Comment by akhatri_aus

The cards have Visa or Mastercard on them but can fall back to use the debit card network by asking you which account to pay with.

The merchant can also disable you from selecting 'credit' while paying to force it to use the debit network.

Its also like this in Australia.

Very few banks still issue debit only cards (Switch/Maestro), they do if you ask for them, but they mostly only work at the ATM.