Just replying to myself in case someone else comes across this thread.
Specifically for Tuxis, you need to delete enough snapshots/data to go under quota and then email their support team at support@tuxis.nl from the email address that owns the...
I'm in the same situation, the bug is still open, and I can't find a way to contact Tuxis. Could someone that has successfully solved this please document how they solved the issue and/or contacted Tuxis?
@Dark26 / @janssensm / @vstrasser Any...