I purchased the K14 flagship version, and then I received an email with a $175 coupon in it, but I couldn't redeem it? Why is this? I want to use it to purchase a MIDI keyboard. Where should I use the code for this coupon? How do you use it?
Unless this is an exception to the rule, e-vouchers can't be applied to hardware purchases.
https://support.native-instruments.com/hc/en-us/articles/211555489-How-to-Use-a-Native-Instruments-e-Voucher