Hello Miri,
thank you for the fast reply.
You are right, because of the oem-keys our balance didnt work. The oem-keys arent different from the normal keys but appears often. so we have 20 times the same key. So it will be shown as one key who is used 20 times. oem-keys are serials from microsoft for pre-activated pc from the supplier. Every supplier has one key and can activate unlimited computer with one key, so I need something that allows me to take oem-keys out of the balance.
Regards,
Tobias