You will need to use your Discount Codes at Piano Pronto by following these steps: Add new items to your cart and click Place Order. Log in to your account at pianopronto.com or create a new one. You will then be taken to the payment interface, where you can enter the Voucher Codes you obtained at uk.hicodestudio.com in the [Use Promo Codes] box. Please note that each Piano Pronto Promo Codes has its own rules of use, which can be used if your order is eligible.