I got banned after "the client failed an anti-cheat runtime integrity check.....

It didn't happen to me to be banned at this point (yet), but this flag appears to me too. Most of the time it happens in the middle of a random game, it doesn't have a pattern to appear, just appears. I tried all possible ways that you can find on the internet and even EA Support. They just don't want to and won't solve this problem... Find peace and try other game while they don't fix.