Hi Deutsh,
_ Dear member of SanDisk Community, welcome. _
Please friend, do not grieve more, see link, and you might have a pleasant surprise:
http://www.sandisk.com/about-sandisk/contact-us/
To find out more on this, see here:
If you want, experimenting with possible solutions, see here:
If you are angry, and think about changing of brand, before, see here:
Enjoy!Â
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Regards, Alfred.                                                 (Google Translated)