I just noticed I received a reply, two days ago:
Google had added some new contraints and we just updated the several of our language modules. We updated English, French and German, the most popular ones, for now. English and French are available now and German is in review.
Please, if you can, give it a try and see if the problem is rectified.
So apparently the support is still active.
You’re a grey hat. Technical problems like these are likely to never get fixed until their consequences are demonstrated.