diff --git a/backend/app/plugins/wiaas/includes/admin/class-wiaas-admin-user-profile.php b/backend/app/plugins/wiaas/includes/admin/class-wiaas-admin-user-profile.php
index 59fc0df..44d92a0 100644
--- a/backend/app/plugins/wiaas/includes/admin/class-wiaas-admin-user-profile.php
+++ b/backend/app/plugins/wiaas/includes/admin/class-wiaas-admin-user-profile.php
@@ -13,7 +13,7 @@ class Wiaas_Admin_Profile {
 
         $phone = $_POST['phone'];
 
-        if (!Wiaas_Validation_Functions::is_phone($phone)){
+        if (!Wiaas_Validation::is_phone($phone)){
             $errors->add('phone_error', __( '<strong>ERROR</strong>: Enter valid phone number.', 'crf' ));
         };
 
diff --git a/backend/app/plugins/wiaas/includes/api/class-wiaas-rest-customer.php b/backend/app/plugins/wiaas/includes/api/class-wiaas-rest-customer.php
index 60c3594..2c57629 100644
--- a/backend/app/plugins/wiaas/includes/api/class-wiaas-rest-customer.php
+++ b/backend/app/plugins/wiaas/includes/api/class-wiaas-rest-customer.php
@@ -148,7 +148,7 @@ class Wiaas_REST_Customer_API {
 			return wiaas_api_notice('ADD_PHONE_NUMBER', 'error', Wiaas_Customer::get_customer_info($customer_id));
 		}
 
-        if (!Wiaas_Validation_Functions::is_phone($phone)){
+        if (!Wiaas_Validation::is_phone($phone)){
             return wiaas_api_notice('INVALID_PHONE_NUMBER', 'error', Wiaas_Customer::get_customer_info($customer_id));
         };
 
diff --git a/backend/app/plugins/wiaas/includes/class-wiaas-validation-functions.php b/backend/app/plugins/wiaas/includes/class-wiaas-validation.php
similarity index 67%
rename from backend/app/plugins/wiaas/includes/class-wiaas-validation-functions.php
rename to backend/app/plugins/wiaas/includes/class-wiaas-validation.php
index 9988b67..e9771c2 100644
--- a/backend/app/plugins/wiaas/includes/class-wiaas-validation-functions.php
+++ b/backend/app/plugins/wiaas/includes/class-wiaas-validation.php
@@ -3,9 +3,9 @@
 defined( 'ABSPATH' ) || exit;
 
 /**
- * Class Wiaas_Validation_Functions
+ * Class Wiaas_Validation
  */
-class Wiaas_Validation_Functions {
+class Wiaas_Validation {
 
     public static function is_phone($phone){
         return WC_Validation::is_phone($phone);
diff --git a/backend/app/plugins/wiaas/wiaas.php b/backend/app/plugins/wiaas/wiaas.php
index b2d0fe1..582e624 100644
--- a/backend/app/plugins/wiaas/wiaas.php
+++ b/backend/app/plugins/wiaas/wiaas.php
@@ -59,7 +59,7 @@ include_once WIAAS_DIR . '/includes/class-wiass-templates.php';
 
 include_once WIAAS_DIR . '/includes/wiaas-class-measurement-units.php';
 
-include_once WIAAS_DIR . '/includes/class-wiaas-validation-functions.php';
+include_once WIAAS_DIR . '/includes/class-wiaas-validation.php';
 
 function wiaas_redirect_to_login() {
     wp_safe_redirect(get_site_url('', 'wp-login.php'));