Can I combine discounts? Customer Support May 06, 2022 01:59 Updated Only one discount code can be used at a time. They cannot be combined with any other discounts or promotions. Return to Mauna Loa Related articles How to apply your discount code. Do you offer discounts or promotions? How do I place an order? Is your Mauna Loa Macadamia Nut Visitor Center open? How do I open a wholesale account?