diff --git a/services/register/register_service/core/register_operations.py b/services/register/register_service/core/register_operations.py
index 707828bee99c9c58ace9155f3f8df9e41f8c71c0..d1d092181b1bc3e093891410d8e814b897a89edc 100644
--- a/services/register/register_service/core/register_operations.py
+++ b/services/register/register_service/core/register_operations.py
@@ -52,11 +52,11 @@ class RegisterOperations:
             exist_user = mycol.find_one({"username": username})
 
             if exist_user is None:
-                return jsonify("Not exister user with this credentials"), 400
+                return jsonify("No user with these credentials"), 400
 
             stored_password = exist_user["password"]
             if not bcrypt.checkpw(password.encode('utf-8'), stored_password):
-                    return jsonify("Not exister user with this credentials"), 400
+                    return jsonify("No user with these credentials"), 400
             
             access_token = create_access_token(identity=(username + " " + exist_user["role"]))
             url = f"http://{self.config['ca_factory']['url']}:{self.config['ca_factory']['port']}/v1/secret/data/ca"
@@ -78,11 +78,11 @@ class RegisterOperations:
             exist_user = mycol.find_one({"username": username})
 
             if exist_user is None:
-                return jsonify("Not exister user with this username"), 400
+                return jsonify("No user with these credentials"), 400
 
             stored_password = exist_user["password"]
             if not bcrypt.checkpw(password.encode('utf-8'), stored_password):
-                    return jsonify("Not exister user with this password"), 400
+                    return jsonify("No user with these credentials"), 400
             
             mycol.delete_one({"username": username})
             return jsonify(message="User removed successfully"), 204