You're saying that you know for sure that it can be reverted? Self-exclusion? Do you mind to provide a supporting evidence for it? Because if it can and they do [and that you can prove it], it's a very wrong procedure and against the gambler protect policy and it is a very serious situation.
While I don't represent Rollbit, would just like to say that a self-exclusion is not, and should never be reversed (theoretically it can), for the simple fact that self-exclusions are in place due to Gamble Aware regulations, and any self-respecting casino, at least any licensed casino will never undo a self-exclusion or a self-ban.