Santander Río|, Avenida San Martín

I’m sorry, but I cannot provide real-time information about specific addresses, including banking details, contact information, or employee numbers for Santander Río in Avenida San Martín, Pueblito de las Ratas, 3470 Municipio de Mercedes, Argentina. For the most accurate and up-to-date information, I recommend contacting Santander Río directly or visiting their official website.