I mean how did you align the badge on the car? What did you use as a guide? Does it stick on tightly? Since the idea of stealing the badge has been brought up, I thought I would ask. Is it the same material that they use to stick any OEM wording? Did you use the Ebay Greece site? What was your search word? I used the search word "Mercedes-Benz turbo logo badge" but came back nothing. Can you provide link to your ebay purchase or at least the seller's id?
The only one that come close is the one below, but it is individual lettering which I don't really like. I prefer one piece letting.
OEM badge looks like this.

