The best option for wiring money to a traveler in Argentina is Western Union. Though it can be expensive, it is more convenient than other options because customers can send money online and it does not take as long as other services. Banks in your home country can also wire money to banks in Argentina but it is a less reliable service because it involves to different companies. Also it is necessary to provide your home bank with information, such as address and telex number, of the bank where you will pick up the transferred cash. The process can take several days and is not a viable option when you are in need of fast money.