Picking up birth certificate in Bangkok?

Hi everyone,
Although of Swiss nationality, I was born in Bangkok and, for administrative reasons, need to get my birth certificate. The problem is that I live in Germany and need someone to pick it up in person for me in Bangkok.
As I don't have any acquaintances in Thailand, I am seeking help from fellow InterNations members!
I have all the necessary info about the hospital I was born in, etc...
I would be extremely grateful if anyone would be willing to help me out!
Cheers!
Julien