Hier j'ai envoyé un mail à Dmitri est voici sa réponse :
"Hello,
We must apologize for long delay with response.
The point is that our manager who dealt with 120MGN project currently on vacation.
Only he knows how to provide access to custom group.
More over we have some technical problems on website.
We're trying to solve this issue.
I hope we'll do it within today.
Anyway I'll email you to update of status.
Thank you for understanding.
Sorry for inconvenience."