once your order is shipped from our ware-house you will get shipping confirmation email with delivery details and contact details for our shipping team. I'd request you to refuse the delivery at real time. The shipment will be returned to Google and we will issue a refund to the card originally charged for the order within 14 business days.
In case if you are unable to refuse delivery I'd request to return the device back to us with 15 days post the order delivery. Please be assured you will get a full refund for your canceled order. Once the refund is initiated, the refund will be issued within 3-5 business days.