diff --git a/src/fmg-components/promo-modal-question/promo-modal-question.vue b/src/fmg-components/promo-modal-question/promo-modal-question.vue
index dd64321bb..00811a9f1 100644
--- a/src/fmg-components/promo-modal-question/promo-modal-question.vue
+++ b/src/fmg-components/promo-modal-question/promo-modal-question.vue
@@ -199,9 +199,14 @@ export default {
                 false
             );
 
+            // ensure that all promo codes that return are in all caps format 
+            promoValidationResponse?.orderPromos?.forEach((orderPromo) => {
+                orderPromo.promoCode = orderPromo.promoCode.toUpperCase();
+            });
+
             return {
                 isValid: !("errorCode" in promoValidationResponse),
-                promoCode: promoValidationResponse?.orderPromos,
+                promoCode: promoValidationResponse?.orderPromos, // should be an array of promos
                 errorCode: promoValidationResponse?.errorCode,
                 additionalInfo: promoValidationResponse?.additionalInfo,
             };
@@ -264,7 +269,7 @@ export default {
                 if (promoCodeData.isValid) {
                     if (this.taxPromos) {
                         const pricedLineItemsToTax = [];
-                        pricedLineItemsToTax.push(...promoCodeData.promoCode);
+                        pricedLineItemsToTax.push(...promoCodeData.promoCode); // promoCodeData.promoCode should be an array
                         const taxedLineItems =
                             await baseMixin.methods.dispatchStoreActionWithLogging(
                                 storeActions.TAX_ORDER_ITEMS_AND_SAVE_SERVER_DATA,