Please Note: if you have submitted a prescribed form via email to challenge@opr.org.tt in relation to a Challenge proceeding, you are to receive an acknowledgement email shortly thereafter. If you have not received an acknowledgement email within 24 hours of your submission, please contact: (868) 627 4OPR (4677), (868) 226-4OPR (4677) or secretariat@opr.org.tt