No, you won’t need to specify an account. ^*Simply tap the contactless terminal for payWave purchases up to $200. The purchase amount will be automatically processed and taken from your nominated account. 

^*Each Visa payWave card has a chip on the front, which safely transmits your payment via multiple layers of protection that keep your card secure. Visa payWave terminals can only make one transaction per card, at a time. However, in the unlikely event that you’ve been double-charged for your purchase, this could be because of a glitch with the merchant, not the card or terminal itself.