"Who is going to save our Church? Not our bishops, not our priests and religious. It is up to you, the people. You have the minds, the eyes, the ears to save the Church. Your mission is to see that your priests act like priests, your bishops, like bishops, and your religious act like religious." - Archbishop Fulton J. Sheen, 1972
Complaining to the Bishop or the Vatican is, unfortunately, unlikely to have any effect, because the group is large and influential. But it could be tried. Avoid this group and spread the word about its errors and dangers.