To check your Jo Mercer gift card balance, go to PAYMENTS, PROMOTIONS & GIFT CARDS page. Once there, click on Gift Cards section to check your balance. You can also chat with their customer service to check your balance. You can check Jo Mercer gift card balance online on our website, or call Jo Mercer at 1300 855 045. You can also visit any Jo Mercer store and inquire a cashier to check the balance for you.