diff --git a/lib/PayPal/Api/BankAccount.php b/lib/PayPal/Api/BankAccount.php
index 79803f7..1ac63cf 100644
--- a/lib/PayPal/Api/BankAccount.php
+++ b/lib/PayPal/Api/BankAccount.php
@@ -6,8 +6,9 @@ use PayPal\Common\PayPalModel;
 
 /**
  * Class BankAccount
- *
+ * 
  * A resource representing a bank account that can be used to fund a payment.
+ * @deprecated Deprecated. It is for internal use only. It may be removed in next major revision.
  *
  * @package PayPal\Api
  *
diff --git a/sample/index.php b/sample/index.php
index f8f02fc..9bf178f 100644
--- a/sample/index.php
+++ b/sample/index.php
@@ -925,39 +925,6 @@ if (PHP_SAPI == 'cli') {
                             </div>
                         </div>
                     </li>
-                    <li class="list-group-item">
-                        <div class="row">
-                            <div class="col-md-8"><h5>Bank Account - Save</h5></div>
-                            <div class="col-md-4">
-                                <a href="vault/CreateBankAccount.php" class="btn btn-primary pull-left execute"> Try It <i
-                                        class="fa fa-play-circle-o"></i></a>
-                                <a href="doc/vault/CreateBankAccount.html" class="btn btn-default pull-right">Source <i
-                                        class="fa fa-file-code-o"></i></a>
-                            </div>
-                        </div>
-                    </li>
-                    <li class="list-group-item">
-                        <div class="row">
-                            <div class="col-md-8"><h5>Bank Account - Retrieve</h5></div>
-                            <div class="col-md-4">
-                                <a href="vault/GetBankAccount.php" class="btn btn-primary pull-left execute"> Try It <i
-                                        class="fa fa-play-circle-o"></i></a>
-                                <a href="doc/vault/GetBankAccount.html" class="btn btn-default pull-right">Source <i
-                                        class="fa fa-file-code-o"></i></a>
-                            </div>
-                        </div>
-                    </li>
-                    <li class="list-group-item">
-                        <div class="row">
-                            <div class="col-md-8"><h5>Bank Account - Delete</h5></div>
-                            <div class="col-md-4">
-                                <a href="vault/DeleteBankAccount.php" class="btn btn-primary pull-left execute"> Try It <i
-                                        class="fa fa-play-circle-o"></i></a>
-                                <a href="doc/vault/DeleteBankAccount.html" class="btn btn-default pull-right">Source <i
-                                        class="fa fa-file-code-o"></i></a>
-                            </div>
-                        </div>
-                    </li>
                 </ul>
             </div>
 
diff --git a/sample/vault/CreateBankAccount.php b/sample/vault/CreateBankAccount.php
deleted file mode 100644
index d8952aa..0000000
--- a/sample/vault/CreateBankAccount.php
+++ /dev/null
@@ -1,83 +0,0 @@
-<?php
-
-// # Create Bank Account Sample
-// You can store credit card details securely
-// with PayPal. You can then use the returned
-// Bank Account id to process future payments.
-// API used: POST /v1/vault/bank-accounts
-
-require __DIR__ . '/../bootstrap.php';
-use PayPal\Api\BankAccount;
-
-// ### Bank Account
-// A resource representing a bank account that is
-// to be stored with PayPal.
-/*
-        {
-            "account_number": "4417119669820331",
-            "account_number_type": "IBAN",
-            "account_type": "SAVINGS",
-            "account_name": "Ramraj",
-            "check_type": "PERSONAL",
-            "auth_type": "WEB",
-            "bank_name": "CITI",
-            "country_code": "US",
-            "first_name": "Ramraj",
-            "last_name": "K",
-            "birth_date": "1987-08-13",
-            "billing_address": {
-                "line1": "52 N Main ST",
-                "city": "Johnstown",
-                "country_code": "US",
-                "postal_code": "43210",
-                "state": "OH",
-                "phone": "408-334-8890"
-            },
-            "external_customer_id": "external_id"
-        }
-*/
-$bankAccount = new BankAccount();
-$bankAccount->setAccountNumber("4417119669820331")
-    ->setAccountNumberType("IBAN")
-    ->setAccountType("SAVINGS")
-    ->setAccountName("Ramraj")
-    ->setCheckType("PERSONAL")
-    ->setAuthType("WEB")
-    ->setBankName("CITI")
-    ->setCountryCode("US")
-    ->setFirstName("Ramraj")
-    ->setLastName("K")
-    ->setBirthDate("1987-08-13")
-    ->setExternalCustomerId(uniqid());
-
-$billingAddress = new \PayPal\Api\Address();
-$billingAddress->setLine1("52 N Main St")
-    ->setCity("Johnstown")
-    ->setState("OH")
-    ->setCountryCode("US")
-    ->setPostalCode("43210")
-    ->setPhone("408-334-8890");
-
-$bankAccount->setBillingAddress($billingAddress);
-
-// For Sample Purposes Only.
-$request = clone $bankAccount;
-
-// ### Save bank account
-// Creates the bank account as a resource
-// in the PayPal vault. The response contains
-// an 'id' that you can use to refer to it
-// in future payments.
-// (See bootstrap.php for more on `ApiContext`)
-try {
-    $bankAccount->create($apiContext);
-} catch (Exception $ex) {
-    // NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY
-    ResultPrinter::printError("Create Bank Account", "Bank Account", null, $request, $ex);
-    exit(1);
-}
-
-// NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY
- ResultPrinter::printResult("Create Bank Account", "Bank Account", $bankAccount->getId(), $request, $bankAccount);
-
-return $bankAccount;
diff --git a/sample/vault/DeleteBankAccount.php b/sample/vault/DeleteBankAccount.php
deleted file mode 100644
index b4d7914..0000000
--- a/sample/vault/DeleteBankAccount.php
+++ /dev/null
@@ -1,23 +0,0 @@
-<?php
-// # Delete Bank Account Sample
-// This sample code demonstrate how you can
-// delete a saved bank account
-// API used: /v1/vault/bank-accounts/{<bankAccountId>}
-// NOTE: HTTP method used here is DELETE
-
-/** @var \PayPal\Api\BankAccount $card */
-$bankAccount = require 'CreateBankAccount.php';
-
-try {
-    // ### Delete Card
-    // Lookup and delete a saved credit card.
-    // (See bootstrap.php for more on `ApiContext`)
-    $bankAccount->delete($apiContext);
-} catch (Exception $ex) {
-    // NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY
-    ResultPrinter::printError("Delete Bank Account", "Bank Account", null, null, $ex);
-    exit(1);
-}
-
-// NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY
- ResultPrinter::printResult("Delete Bank Account", "Bank Account", $bankAccount->getId(), null, null);
diff --git a/sample/vault/GetBankAccount.php b/sample/vault/GetBankAccount.php
deleted file mode 100644
index a76f51b..0000000
--- a/sample/vault/GetBankAccount.php
+++ /dev/null
@@ -1,27 +0,0 @@
-<?php
-
-// # Get Bank Account Sample
-// The Bank Account resource allows you to
-// retrieve previously saved Bank Accounts.
-// API called: '/v1/vault/bank-accounts'
-
-// The following code takes you through
-// the process of retrieving a saved Bank Account
-
-/** @var \PayPal\Api\BankAccount $bankAccount */
-$bankAccount = require 'CreateBankAccount.php';
-
-/// ### Retrieve Bank Account
-// (See bootstrap.php for more on `ApiContext`)
-try {
-    $bankAccount = \PayPal\Api\BankAccount::get($bankAccount->getId(), $apiContext);
-} catch (Exception $ex) {
-    // NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY
-    ResultPrinter::printError("Get Bank Account", "Bank Account", $bankAccount->getId(), null, $ex);
-    exit(1);
-}
-
-// NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY
- ResultPrinter::printResult("Get Bank Account", "Bank Account", $bankAccount->getId(), null, $bankAccount);
-
-return $bankAccount;