A barter voucher that can be exchanged for a Verdant Black Stone. .page-node-shop-sm-retail-stores-your-bdo-unionpay-card .title_bluebanner h2, Promo is also available at www.waltermartdelivery.com.ph or through Walter Mart Delivery app. } Promo runs until November 30, 2020. For concerns, please go to your branch of account or call our Customer Contact Center at (02) 8631-8000.