Buying AutoCAD 2012 directly is no longer possible through Autodesk as it is a "legacy" version that has reached its end-of-life. However, you can still acquire it through specific alternative methods or buy a modern subscription that includes access to older versions.
: Ensure the seller is offering a genuine serial number and product key. For reference, the product key for AutoCAD 2012 is usually 001D1 . buy autocad 2012
Before buying, confirm your hardware and OS can actually run this 15-year-old software: Buying AutoCAD 2012 directly is no longer possible