Since my Alitalia status was given because of the status match, United didn't give me the match.
Below is the answer from UA.
Dear xxxxxx
Based on our investigation of the submitted documentation, we have determined there may be fraudulent or suspicious aspects of the credentials you provided and your request has been declined. If you believe this assessment to be in error, you may contact United Airlines Corporate Security at mpcompliance@united.com .
Regards,
MileagePlus Corporate Security Liaison