diff --git a/src/layouts/payment-method/promo-modal-question/promo-modal-question.vue b/src/layouts/payment-method/promo-modal-question/promo-modal-question.vue
index ac42fce2e..deff594e5 100644
--- a/src/layouts/payment-method/promo-modal-question/promo-modal-question.vue
+++ b/src/layouts/payment-method/promo-modal-question/promo-modal-question.vue
@@ -217,13 +217,11 @@ export default {
                 } else {
                     if (promoCodeData.errorCode == promoErrorCodes.PROMO_STACKING_NOT_ALLOWED) {
                         this.displayInvalidOnOrderPromoAlert = true;
-                        this.focusOnPromoInput();
-                        this.resetModalButtonStyle();
                     } else {
                         this.displayInvalidPromoAlert = true;
-                        this.focusOnPromoInput();
-                        this.resetModalButtonStyle();
                     }
+                    this.focusOnPromoInput();
+                    this.resetModalButtonStyle();
                 }
             }
         },
diff --git a/src/layouts/payment-method/promo-modal-question/promo-question/promo-question.vue b/src/layouts/payment-method/promo-modal-question/promo-question/promo-question.vue
index 25744e652..053e8eedc 100644
--- a/src/layouts/payment-method/promo-modal-question/promo-question/promo-question.vue
+++ b/src/layouts/payment-method/promo-modal-question/promo-question/promo-question.vue
@@ -8,6 +8,7 @@
         cornerStyle="rounded"
         :displayQuestionText="false"
         isRequired
+        @input="validateAlphanumeric"
         validationRules="promo-required" />
 </template>
 
@@ -22,6 +23,8 @@ import { errorMessages } from "@/constants/error-messages";
 // Define Validation Rules
 defineRule("promo-required", required(errorMessages.PROMO_REQUIRED));
 
+const ALPHANUMERIC_REGEX = /[^a-zA-Z0-9]/g;
+
 export default {
     name: "promo-question",
     props: {
@@ -38,6 +41,11 @@ export default {
             },
         },
     },
+    methods: {
+        validateAlphanumeric() {
+            this.value = this.value.replace(ALPHANUMERIC_REGEX, "");
+        },
+    },
     components: {
         textboxQuestion,
     },