Windows 7 worries gone - proof of purchase worked like magic

When I got a new Toshiba laptop at Costco it did not occur to me that in order to get my free copy of Windows 7 I will have to keep the original receipt. Usually, a UPC code is enough, right? Especially with Costco, because they never even need receipts if you bring anything back. Everything is in the system! So, I was a little worried when I found out that Toshiba wants you to scan the sales receipt as a proof of purchase for the Windows 7 update. Finally, I went to Costco and they issued what is called a "Sales audit". It did not look at all like a receipt, but contained pretty much the same information. I scanned it and a few days later Toshiba notified me that it was approved! And I was actually contemplating that I just might have to spend over $100 to upgrade. What a relief!