Does anyone know how EVGA "verifies" invoices? I got an EVGA GTX 1080 and want to upgrade to a GTX 1080ti using their "Step-Up" Program (In the first 90 days of your purchase you can upgrade to a higher level graphics card by just paying the difference between what you paid for your old card and what the MSRP of the new card is.) So because I refunded my 1080 from a local big company I'm wondering if it could cause problems that EVGA will "verify" the invoice (It states on their website that you have to send them a scan or photo and that they will verify it). Another Idea I had was to make a fake invoice with a higher price so that I will only have to pay a small price of like 10€ instead of 130€ for my step up. What do you guys think? I don't want to blow my chance because then i'll have to sell my 1080 and get the new one seperately ^^. Basically my main question is whether some of you guys know if and how they verify invoices? (like just the normal order number check for Amzn or something)