Platinum card access Delta lounge question
Hi All-
Just got the Platinum card, not co-branded with Delta, flying on Delta soon with by Brother and his 2 daughter's (my nieces 13 yo).
My question do I and just 2 guests get access and the 4th I will have to pay the full price for entry? Or will Delta count my brother as 1 guest and not charge for the 13 year-olds? We are flying on the same PNR in Delta Domestic First.
I just upgraded from the Delta AMEX Gold which is of course $29 per person for entry.
Thanks,
Paul