Hi there, just to clarify on this:
There was an issue with the setup in the game versions 2.13.1. and 2.13, but this should now be fixed if you are using the necessary game version 2.13.2 - if you enter the guild after registration, you should receive rewards for your participation, the only exception being if you were opted out, or just didn't win one single attack.
Ha, I actually helped investigate this issue for Customer Support. Two weeks ago for some reason you and your guild members received Guild War rewards equal to what you would have received had your guild been ranked #1. So that wasn't a 50% increase from the VIP level that you got, but a glitched payout. Everyone got that, even your members without VIP level - so they now also receive comparatively less than that week - it's actually the normal payout however. But yeah, there was definitely a glitch involved, and we are checking this!
The error is never quite where you look...
Post how many Tokens you got here and the rank of your guild, than it will be easy for others to compare.
Shoot me a line here if Support is giving you a hard time, maybe I can find something. Be prepared to not like what I find though.