diff --git a/src/assets/js/retailcrm-loyalty-actions.js b/src/assets/js/retailcrm-loyalty-actions.js
index c4bf93f..c8b626c 100644
--- a/src/assets/js/retailcrm-loyalty-actions.js
+++ b/src/assets/js/retailcrm-loyalty-actions.js
@@ -108,4 +108,11 @@ jQuery(function() {
             jQuery(this).fadeOut();
         }
     });
+
+    jQuery('#phoneLoyalty').keydown(function (e) {
+        let key = e.key;
+
+        return (key >= '0' && key <= '9') || key == '+' || key == '(' || key == ')'|| key == '-' ||
+            key == 'ArrowLeft' || key == 'ArrowRight' || key == 'Delete' || key == 'Backspace';
+    });
 });