are the Jeter and A-Rod game used jerseys you're trying to photomatched MLB Authenticated?

There was the Andy Pettitte 2009 home jersey that I was really interested in picking up, but I could not find any photo matches that aligned the pinstripes to the NY logo and 2009 Inaugural patch and when I asked a Steiner rep if he could help me by letting me know the MLB Authenticated number so I could check on the database, he simply said the jersey is MLB Authenticated and wouldn't budge revealing the serial number on the hologram. was there something to hide?