license download problem

hey. i bought cubase 5 and the license download says: “the activation code has been used alredy. an activation code
can be used only once to download or upgrade a license. please contact your software vendor to get a vaild activation code”.
i did ask him about that if he alredy downloaded the license…he sayd he never used it.
please help what can i do in the elicenser control center i see “All applications remaining time :24 h 45 min…”

Thanks.

Contact Steinberg support…