Since going public two and a half years ago, MoneyGram has made great strides by pouring energy and resources into several critically important areas for business. If you need to cancel or change a transaction, then you should contact by telephone with the MoneyGram branch agent, made the transaction for you. MoneyGram International, Inc. - The U.S. financial company engaged in operations in the international financial markets since 1940. In MoneyGram were added or converted new currencies in an additional 29 countries during the past year, providing consumers with a wide array of currency payout options.