Registered Users cannot unsubscribe from service announcements that discuss upcoming changes that affect their Xavio Infotech (P) Ltd. accounts.</p> Choice/Opt-out <p>Upon registration, users can opt-out of Xavio Infotech (P) Ltd.'s option communications. Additionally, registered users can, at any time, modify their Xavio Infotech (P) Ltd. email (service announcement) preferences by updating their account information.</p>