The support system has separate login credentials from Renderosity.com.

I think what antje is saying is that you don't need to create an account in the support system, you can just click "Open a New Ticket" whenever you want to contact support.

However, it may be more convenient for you to have an account in the support system. I'm not sure what making an account will do, but I'm guessing it'll at least make it more convenient for you to submit multiple tickets (since the system would already have your basic contact information). If you want an account on the support site, you will have to create a new account first. However, you can submit tickets without an account.

Please let me know if you have any other questions/concerns?

Thank you for contacting us, really sorry for all the confusion here. 

Laura