Did you get banned or did you get ejected (kicked)? If you got kicked, it's temporary. It's happened to me and I've never understood why. The last time was AFTER I had just tipped the model 50 credits.
Either way, as a long time customer here, my recommendation is to go with the "plenty of fish in the sea" philosophy. Go find the models that don't kick or ban you unless you give them a coherent reason. If I am never rude to a model (and I never am), then I don't need to tolerate models that are rude to me.
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