Need to EDIT my Acer Registration for Aspire Desktop so to enter Customer Invoice Receipt;

Thrip

I purchased an Acer Aspire Desktop on April 29 but the store got things strangly mixed up with their Customer Receipt invoice emails and it was only today that I finally got the receipt -or "Customer Invoice" in the email for my computer purchase.
I had already filled out my Registration Form online for the Desktop -except for the Customer Invoice Receipt. -I want to go back to the same Registration and EDIT it so as to insert the needed Customer Invoice Receipt.
When registering a LG Monitor I found that I could indeed go back to my almost fully completed registration form -and click on "EDIT" -and then easily insert the Customer Invoice Receipt, SAVE and EXIT
-Surely there's something I could do with the Acer registration?

Larryodie

I would think that you could re-register. I'm not sure why Acer would need your receipt ?