I'll give u some solutions here before the thread gets locked
1.If you don't want clan vs clan drama, leave faction and do quest instead of staying in faction, after finish the quest then rejoin, most of ppl use that method. Like really, your clan is mostly afk/daily quests, not doing such big raids or PvP so it really doesn't matter if u leave for 7 days.
2.I don't see GM will do anything about this case, since GM doesn't even bother to accept other people's request.
3.You have played this game since G1 which is like 5~6 years, you should have known that TO and Candy just wars every clan in server that squad with Evo/NK lol, its not our fault that you don't know.
4.If you don't want the war thing to happen then you need to talk it out with your leader and your enemy leader about reasons and ask for truce before complaint without trying to negotiate things out.