Is the support page link down?
No , it works ! https://support.native-instruments.com/hc/en-us
For ALL support, e.g. Purchase and Account or e.g. Native Access support then when you have clicked your choice e.g. Purchase and Account or e.g. Native Access on the support page here ! , then on next page , then first check the Popular Topics , Related Articles and the visit 'Online Community' to see if there is any answer to your question ! and if it doesn't help then scroll down the page and then notice little blue box down in the right corner of interface this is the new interface in the works ! So you have to click on that !
Thanks you