Can I get an eReceipt or a copy of a receipt from old purchase?

My daughter is interning overseas and her Air just died.

The Authorized Repair place there says she has 22 days left on warranty, but needs proof of purchase.

Still hoping to find the paper receipt from 3 years ago, but wondering if she can get a copy thru her AppleID or equivalent.

It was purchased in an Apple store. That one won't open for a couple hours, but I will be calling them as well.

Thanks in advance.