diff --git a/packages/relay/src/routers/LedgerRouter.ts b/packages/relay/src/routers/LedgerRouter.ts
index 1a029775..eab4491f 100644
--- a/packages/relay/src/routers/LedgerRouter.ts
+++ b/packages/relay/src/routers/LedgerRouter.ts
@@ -403,12 +403,12 @@ export class LedgerRouter {
         try {
             const number = this.phoneUtil.parseAndKeepRawInput(phone, "ZZ");
             if (!this.phoneUtil.isValidNumber(number)) {
-                return res.status(200).json(ResponseMessage.getErrorMessage("2003"));
+                return res.status(200).json(ResponseMessage.getErrorMessage("2007"));
             } else {
                 phone = this.phoneUtil.format(number, PhoneNumberFormat.INTERNATIONAL);
             }
         } catch (error) {
-            return res.status(200).json(ResponseMessage.getErrorMessage("2003"));
+            return res.status(200).json(ResponseMessage.getErrorMessage("2007"));
         }
         const phoneHash: string = ContractUtils.getPhoneHash(phone);
 
@@ -543,12 +543,12 @@ export class LedgerRouter {
         try {
             const number = this.phoneUtil.parseAndKeepRawInput(phone, "ZZ");
             if (!this.phoneUtil.isValidNumber(number)) {
-                return res.status(200).json(ResponseMessage.getErrorMessage("2003"));
+                return res.status(200).json(ResponseMessage.getErrorMessage("2007"));
             } else {
                 phone = this.phoneUtil.format(number, PhoneNumberFormat.INTERNATIONAL);
             }
         } catch (error) {
-            return res.status(200).json(ResponseMessage.getErrorMessage("2003"));
+            return res.status(200).json(ResponseMessage.getErrorMessage("2007"));
         }
         const phoneHash: string = ContractUtils.getPhoneHash(phone);
 
diff --git a/packages/relay/src/utils/Errors.ts b/packages/relay/src/utils/Errors.ts
index c54f4b6a..10d1a0ca 100644
--- a/packages/relay/src/utils/Errors.ts
+++ b/packages/relay/src/utils/Errors.ts
@@ -58,7 +58,8 @@ export class ResponseMessage {
         ["2003", "The payment ID is not exist"],
         ["2004", "Temporary address that does not exist"],
         ["2005", "Mobile notification not allowed"],
-        ["2006", "Mobile notification not allowed"],
+        ["2006", "Can not found delegator"],
+        ["2007", "The phone number format is invalid."],
         ["2020", "The status code for this payment cannot be approved"],
         ["2022", "The status code for this payment cannot be cancel"],
         ["2024", "The status code for this payment cannot process closing"],