Marshmelllow, just a tip if you join a fellowship in the future, is to check out the Overview and see if they have any special requirements, like making 1000 a week in the tourney or whatever. Then join one where you know you could meet the standards every single week. Some fellowships don't use the Overview, however, so that's not always available. Sometimes people remove a person by accident but that's very rare because there is a confirmation button ... so you have to "accidentally" click two different screens to really kick a person out.
I've seen it happen where they were saving a slot for a high roller, but one of their team members didn't realize it and invited another player in. The mage that was waiting for the high roller to come in got mad and kicked the person out to reopen the slot. When that happened in my fellowship while I wasn't there, I was furious. The person who came in had done nothing wrong and shouldn't have been treated that way.
Just keep trying ... there are a lot of fellowships who really need players, and I'm sure you'll find a good fit soon.