[Tycon3] Need help: how can I get invitation letter as one of the requirement to apply Schengen VISA

[Dodi Iriyanto]

Hi all,

Greetings! from Indonesia.

My name is Dodi Iriyanto. I am very interested to attend admission and 
full day tutorial in T3CON12 in Stuttgart, Germany. I have booked a 
ticket for admission fee and full day tutorial. One of the requirement 
that need to be provided to get Schengen Visa from my country Indonesia 
is attach an invitation letter from the organiser (TYPO3 Association). 
Could you inform me how can I get invitation letter? Is it possible for 
TYPO3 Assocation to send me this letter? it's important for me before 
Visa is approved by Germany embassy in Indonesia.

Thank you in advance.

Regards,
Dodi