Peakchocolate.com.au offers various coupons and discount codes to their customers. These include 15% off on any order, 10% off on your payment, and free shipping on orders over $70. There are also seasonal sales such as Easter Sale, Valentine's Day Sale, Black Friday Sale, and Father's Day Sale where customers can avail of additional discounts. Please note that these offers may vary and it's always a good idea to check their website or sign up for their newsletter for the latest deals and promotions.