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. In the city of San Salvador representatives of MoneyGram and Citibank announced a new regional project, which will provide money transfer services in Costa Rica, El Salvador, Guatemala, Honduras and Nicaragua. MoneyGram Until 2004, the owners of MoneyGram were Viad Corp and Travelers Express Company Inc.