VIP ticket question

I’m seeing Green Day at SoFi stadium in LA next week. I bought a VIP ticket to the Smashing Pumpkins pre show mainly because I wanted early entrance to get to the front of the pit.

Someone told me though that the pre show ticket holders enter the stadium later than everyone else, so I’m willing to skip the pre show and go in with GA. Am I able to call the stadium customer service to ask about this? Or how would you go forward in this situation? Thank you.