diff --git a/power-pay-backend/src/main/java/com/adorsys/gis/powerpay/powerpaybackend/repository/UserRepository.java b/power-pay-backend/src/main/java/com/adorsys/gis/powerpay/powerpaybackend/repository/UserRepository.java
index f225aa7..0ae9b4a 100644
--- a/power-pay-backend/src/main/java/com/adorsys/gis/powerpay/powerpaybackend/repository/UserRepository.java
+++ b/power-pay-backend/src/main/java/com/adorsys/gis/powerpay/powerpaybackend/repository/UserRepository.java
@@ -8,5 +8,6 @@
 
 @Repository
 public interface UserRepository extends JpaRepository<User, String> {
+
     Optional<User> findByPhoneNumber(String phoneNumber);
 }
diff --git a/power-pay-backend/src/main/java/com/adorsys/gis/powerpay/powerpaybackend/services/CheckBalance.java b/power-pay-backend/src/main/java/com/adorsys/gis/powerpay/powerpaybackend/services/CheckBalance.java
index 8aa5e34..91bc0bf 100644
--- a/power-pay-backend/src/main/java/com/adorsys/gis/powerpay/powerpaybackend/services/CheckBalance.java
+++ b/power-pay-backend/src/main/java/com/adorsys/gis/powerpay/powerpaybackend/services/CheckBalance.java
@@ -4,5 +4,5 @@
 
 //implementing an empty interface
 public interface CheckBalance {
-    Double checkBalance(String userId) throws UsernameNotFoundException;
+    Double checkBalance(String phoneNumber) throws UsernameNotFoundException;
 }
\ No newline at end of file
diff --git a/power-pay-backend/src/main/java/com/adorsys/gis/powerpay/powerpaybackend/services/CheckBalanceController.java b/power-pay-backend/src/main/java/com/adorsys/gis/powerpay/powerpaybackend/services/CheckBalanceController.java
index 8e877ee..6fff0e9 100644
--- a/power-pay-backend/src/main/java/com/adorsys/gis/powerpay/powerpaybackend/services/CheckBalanceController.java
+++ b/power-pay-backend/src/main/java/com/adorsys/gis/powerpay/powerpaybackend/services/CheckBalanceController.java
@@ -25,14 +25,17 @@ public CheckBalanceController(CheckBalance checkBalanceService, UserRepository u
         this.userRepository = userRepository;
     }
 
-    @GetMapping("/{userId}")
-    public ResponseEntity<String> checkBalance(@PathVariable String userId) {
-        Optional<User> user = userRepository.findByPhoneNumber(userId);
+
+    @GetMapping("/{phoneNumber}")
+    public ResponseEntity<String> checkBalance(@PathVariable String phoneNumber) {
+        Optional<User> user = userRepository.findByPhoneNumber(phoneNumber);
         if (user.isPresent()) {
-            Double balance = checkBalanceService.checkBalance(userId);
-            return ResponseEntity.ok("Balance for user ID" + " : " + balance);
+            Double balance = checkBalanceService.checkBalance(phoneNumber);
+            return ResponseEntity.ok("Balance for user phoneNumber" + " : " + balance);
+
         } else {
             return ResponseEntity.status(HttpStatus.NOT_FOUND).body("User not found");
         }
     }
 }
+