diff --git a/README.rst b/README.rst
index b469e5c..5b051a7 100644
--- a/README.rst
+++ b/README.rst
@@ -276,8 +276,8 @@ Create
         "invoice": "147205",
         "description": "pay test",
         "value": "116000",
-        "tax": float("16000"),
-        "tax_base": float("100000"),
+        "tax": "16000",
+        "tax_base": "100000",
         "currency": "COP",
         "type_person": "0",
         "doc_type": "CC",
@@ -286,7 +286,7 @@ Create
         "last_name": "PAYCO",
         "email": "no-responder@payco.co",
         "country": "CO",
-        "cellPhone": "3010000001",
+        "cell_phone": "3010000001",
         "ip": "190.000.000.000",  # This is the client's IP, it is required,
         "url_response": "https://tudominio.com/respuesta.php",
         "url_confirmation": "https://tudominio.com/confirmacion.php",