RAZER Silver Voucher Code doesnt work

Hi dear Support, i have the problem like some other customers here,that my Voucher Code doesnt work. I redemed the Razer Hydrator black in the German silverstore,but on the GERMAN Razerstore itself is an error shown that i have to contact the Support. I did contact the Gold-silver Support and they told me that theres Something wrong bout the Razerstore checkout Page. No more informations given... So the code is still invalid but the Support said,that the code is still active. Please help because i dont want to lose it after hard grinding!