Roblox, Xbox Receipt Help

And what do I tell them that I need the receipt of the Xbox purchased in February 28 2017 and how do they know it's me

So If I ask them they can give me the receipt from 2017?, and I have the receipt from the other Xbox that I purchased in 2021 will they accept that?

Hi and thanks for reaching Microsoft Xbox gamer's community. My name is Josef.
I'm an Independent Advisor and a Microsoft Xbox user like you.

Hope you're doing great today despite this Katis24

Do you need the specific receipt for the console itself?
If that the case, where did you purchased this first Xbox?
From Microsoft store / Xbox.com website or did you purchased the console from a third party store like Walmart, Amazon, Best buy etc?

You're welcome!
Hope they can give you a copy of the receipt as soon as possible

Don't hesitate to reach the community forums if you need help in the future
For now take care and have a good day

It's just a guess. But you may need to verify your identity with them.
Probably they're going to ask the exact date of purchase, the serial number if you have it
Things like that