I can't play with Tiamat. He's working, and then his wife schedules his free time. As a result, he can't commit to a specific time.

If he doesn't even know when he'll be available and can't give you any specific dates, then you need to tell him the dates when you're available. But not just one day, of course, but at least 3 different days, and so that you can play for more than just an hour or two. When he knows the dates, he can adjust to any of them. If he can't make any of them, then he'll just have to hope to catch you online by chance. If that doesn't work, then at the end of the deadline, I'll enter the technical results.

As for controversial situations, starting with the next stage of the playoffs, I will introduce more specific dates for the games. I have a small idea of how to handle situations when a game is overdue and the deadline is approaching... Mandatory dates for finishing the games will be introduced.

Added 17 minutes ago

Egor called me a few minutes ago and said that his internet went down for an unknown period.

Egor and his team can only hope that the internet will be back up before the deadline for the first round of the playoffs. I can advise him to look for a replacement or a substitute who can temporarily replace him. He can't invite anyone who already participated in the tournament. The skill or experience of the invited player must match the 3rd tier; you can't downgrade a player from the 1st or 2nd tier to the 2nd or 3rd. There have already been some unserious suggestions.

P.S.: Good job that you're reporting the problems; if you had done it earlier, it would have been better, but you were silent like partisans during the group stage.