Yes, gift cards with pin numbers that were purchased in Australia from Cotton On Group stores are now valid for use online and in-store. 

To redeem your gift card online you will need to enter your gift card number and pin at checkout. 

How do I pay the balance if my gift card won't cover the full order?
Once you have applied your gift card, you can choose to pay the remaining balance via Visa, MasterCard, AMEX, Paypal, Afterpay or any of the payment methods that we have available. We accept more than 8 payment methods online.