Beautiful mouse, but not durable

Now, after 3 months of use, and not very intense (usually only on weekends), I drive the PC high, but the pointer moves a millimeter. I've tested the mouse on all USB ports and to various PCs, no function, only the lighting works.
I read on the internet before ordering that Roccat products not to be very durable, but 3 months for a 70 Mouse are definitely too short.
I'll have to do better or worse, back to the search for a new mouse.

Update: 12/29/14
I have now informed my problem Amazon and get a replacement delivered. The settlement of the whole ran absolutely smoothly and quickly, and that even in the days after Christmas. Kudos to this point at the Customer. I give the Roccat So a second chance, because I like the mouse to be very good.