Problem with ordering from Apple Store

Hey everyone! My mom wanted to buy me a macbook as a gift for me that I'll pay her back for throughout the year. My brother is in college, so for education pricing she can say it's for him. Problem is I accidentally signed in through my own apple id when I bought the macbook, and if they ask for prove of school id I will have to show my brother's, but the billing is under my mom's. It's a big mess, but would apple understand? Thanks.

 

Yeah I ordered online. And thanks!!