I am hoping you knowledgeable folk will be able to help me figure this out!

I am going MAN-JFK-BOS then BOS-PHL-MAN in August on an AA flight sold as IB. This was a real steal - £900 in business class, bought via Momondo. (I was suspicious it wouldn't ticket, but it has!)

My questions:

(1) will I get avois at the IB rate as this is how the ticket was sold?

(2) seats; slightly more complex. I can log on using the AA booking identifier and request seats and meals. These don't match the seat allocation in My Flights and on the Iberia website (where it won't let me change seats at all). Presumably, as all flights are operated by AA, I will be seated and fed as per what is visible on the AA booking?

Thank you!