I purchased licenses in my country from a Polish company 2.5 years ago. And having such a license (without knowing its source), I activated it without any problems. When changing the computer, the license does not work. I'm sorry, but I have the impression that you quietly changed your policy to stop the actions of dishonest distributors. This is ok. However, it should not have retroactive effect. After all, the seller will not return my money after 2.5 years.