Ok let me explain you how I see this situation:
Sentinel is beating Scourge quite hard, and you got killed for the 4th time so you decided to leave , there's no signal that you all had lag -as you haven't provided the replay it can't be proved- but even if it was true and there was heavy lag, you endured it for 24 minutes!! and don't tell me it started getting laggy the last 4th deaths of you
I always say that ifirst you all have to tunnel the host to know the ping response and if it seems nice but in game it's a hell of lag you should leave as soon as possible to deaden everyone's implication in the game since it's better(less worse) to leave a barely started game than ruining a game in fully progress.
Im well aware that this is the first ban request on you but the fact that you haven't provided any evidence makes me impossible to help you, I only can give you this advice.
Start your w3 > Options > Gameplay > Autosave Replay Feature ; put a tick on it and and every game you play will be saved in a folder withing your w3 folder.
I can do nothing else to help you this time , but if you manage to get the replay of that game from any other player , feel free to open another unban request providing it.
Denied.
( cry. ban me and other 3 500 hours just because host lag.