Getting invoice for Asus repair

[karsa6245]

My boyfriend bought a expensive gaming Asus laptop in may 2015, the battery has died on it and we need proof of purchase to send to asus. We cant find the order email or the physical invoice, and his order isnt on his account as I think he made it after the order. Can we get a replacement invoice from overclockers without having the order number? We know the postal address and approx the date he bought it.
Thanks

 

[spoffle]

A expensive?

They'll be able to narrow it down based on address. I've had them do this for me in the past, though it was for an in store order, I just had the exact date which helped them get the invoice for me.