Ubruns, If you follow this link it will allow you to enter your service tag, once entered it will lead to where you can choose between email, phone, or chat support. You can also post here and we can assist you as well. 
Hi all, I'm now searching for some time how to open a Service Request or Ticket for some iDRAC issues I found. How can I submit these? Regards, UBruns
How to open a service Request / Ticket / Issue