Kai Hi,
You can get in touch with the support in the Profile tab > + > Support Centre
But you can also have a look at the existing topics for about V3 🎉
Enjoy the new experience and let us know what you think here
If you have additional questions, you can ask them here
We're now going to close this topic as this is a duplicate of an existing one, we are kindly asking you to refrain from opening new threads about V3 and using the existing threads instead.
Cheers,
bunq