The interesting thing is my license was not sold by a third-party seller in Amazon Marketplace. It was sold by Amazon Digital Services, LLC and added to my Amazon Software Library, just like many other software titles I bought. It's unfortunate you cannot trust even Amazon themselves.
I did get a reply from Sales explaining this and was able to get a refund from Amazon after explaining the issue. I bought a 3-year AIDA64 license directly from you with the 20% off coupon that Sales provided, thank you!