Contact the team
One form, read by the people who maintain the index. Reports about wrong version data, a dead mirror or a broken listing are dealt with first.
Before you write
Most installation questions are already answered on the guides page, and the frequently asked questions cover the recurring ones. If you are asking for a title that is not catalogued, the requests page is the right place, since requests posted there are counted and the count decides what gets added next.
What to expect
Everything sent through this form is read. Reports about wrong data on a listing usually get acted on within a day, mirror reports within a few hours, and general questions when there is time. There is no ticket system and no automated reply, so if you do not hear back it means the message is still in the queue rather than that it was discarded.