<?xml version='1.0'?> 
 <methodResponse> 
  <fault> 
   <value>
    <struct>
     <member> <name>faultCode</name> <value><int>401</int></value> </member>
     <member> <name>faultString</name> <value><string>Wrong i_tariff</string></value> </member>
    </struct>
   </value>
  </fault>
 </methodResponse>