Good software, but Samsung Tab3 unusable

The software was delivered very quickly and could be installed easily on my laptop. To the "adjunct" for an Android tablet (or mobile phone) I sent an inquiry to Kasperski; with regard to the installation on a Samsung Galaxy Tab. 3
I after a week still had no answer, I have repeated the request. The next day, the surprising answer came with the lapidary statement that the software is not compatible with my Tab !!
That reminds me, this statement did not appear sufficient, I asked ernaut according to learn the reason for the incompatibility.
Today I received the following explanation:

"The x86 processor architecture of your device is not supported by our software unfortunately, so unfortunately I can offer only the return of the Kaspersky Internet Security for Android license will in this case.
We apologize for any inconvenience you so far. "

Now I wonder: How can I return the goods, if I have already installed the software on a laptop.
I can not imagine that Amazon or the dealer will take back these goods and refund the purchase price.
However, I will Amazon informed directly about this unsatisfactory offer, because the Pruduktangaben are not applicable.