Adelinutz, there ARE legitimate causes for complaint. There are FULL-SIZED alliances that have been waiting for days to get a war opponent. There's nothing wonderful about that when your members actually WANT to enjoy this feature.
Like your alliance, mine enjoyed the wars without a hitch until Sunday night. We declared war right after our victory and have been waiting for an opponent ever since. Wouldn't YOU complain if that happened with YOUR alliance? We had over 45 members when we declared war. We have 50 last time I checked.
There are many things we can quibble about with the FUNCTIONAL alliance war feature. But the most urgent and absolutely warranted complaint is that for some alliances, it has STOPPED FUNCTIONING. More and more alliances are running into this wall every day now. Yes. You WOULD complain.