[eastonfalcon19]

I usually don't post on this side of the forum but I have a question and hopefully somebody could shed some light on this issue. So my cousin and I went to a local card shop back in 1999, bought some packs and boom he pulls this Hank Aaron autograph/GU bat card. The card has been in plastic since he pulled the card back in 99. He recently submitted the card to Beckett and was shocked when it came back as "Altered". So my question is, is this a manufacturing alteration? or did Beckett get it wrong? What would be the next course of action be? Thank you for any kind of feedback.