Most banks are on or near the Plaza de Armas and all have ATMs. Money changers congregate around the bus terminal and at the border, but check rates before handing over any money.
Cambios Chaco A reliable option for exchanging money, next to Super 6 supermarket.
Telephone cabins are scattered around town, especially in the area around the bus terminal.
Senatur In a large new building at the western end of the Costanera, near the entrance to town. Despite the opening times, it is only sporadically staffed outside of the main summer season (November to February).