Tizen Enterprise Manager platform organization acception

I have created organization on the following platform, and after 3 weeks it is still in “waiting” status. What should I do? Should I somehow accept it or should I wait more?

Perhaps you can try to find a Samsung business collaborator for your region from the support channel. Hopefully they will be able to help you.
You can find the support channels available in your country at www.samsung.com/support