Go to Payment Credits link at the top of the Contact page. If a voucher exists, it will be located there.
Amount Granted: total value of the voucher
Amount Redeemed: value that has already been used on a RP program or service
Amount Expired: value that is no longer active. This value cannot be used unless the voucher is extended
Amount Removed: value that is no longer active, often because it has been transferred to another client, or if they get an extension (old amount is removed, new amount is sent)
Amount Outstanding: amount remaining active in the voucher (= Amt Granted minus Amt Redeemed minus Amt Expired)