Early entry for england shows


So I’m a bit confused about how the premium packages work. There seems to be early entry for only the seated packages but not for the standing. So if i buy the premium ticket with standing do i just enter with everyone else? How does that work with meet and greet? If meet and greet is 30-60 minutes before the show, does that mean i would end up in the back of the standing area for the show? (this is assuming i get selected for meet and greet).
Is there any other way to get early entry for these shows? Is the LPU early entry with laminate still valid?
Finally, for the Barclaycard arena in birmingham seems to have a front standing and rear standing. Does buying the the Premium ticket package (standing) - (150 pounds), do i definitely get to be in the front standing section?