Hello. I bought a used komplet kontrol S61 MK2 but the seller did not give me a transfer number. How to resolve the situation.I can no longer contact him and given the price, I would be disappointed not to be able to use my new keyboard. THANKS
Hello,
you should contact support here:
https://support.native-instruments.com/hc/en-us/categories/360000053657-Purchase-Account