Abstract Argentina is a country located in the South American region with more than 45 million inhabitants. According to the National Institute of Statistics and Censuses, over 92% of the population lives in urban areas. Additionally, 47% households do not have access to computers, and 12% lack availability of the internet. The present case study demonstrates the effects of the digital divide regarding the use and access to digital technologies in patients who underwent virtual treatment for substance-related disorders in a mental health service in the city of Córdoba, Argentina. This treatment modality included virtual consultation with a psychologist and WhatsApp groups for mutual support. The data obtained is part of a larger research project aimed at evaluating access to digital healthcare treatment, quality of life and patient satisfaction with the use of digital tools for treating substance-related disorders. Participants were adults between 25 and 60 years. The majority of the patients who were surveyed presented cognitive impairment and unemployment status. Those who completed secondary school (79%), stated that virtual consultation was easy to conduct (83%) and WhatsApp group texting information for mutual support was very difficult to comprehend for participating actively (63%). On the other hand, participants who only reached primary school (21%) declared that virtual consultation was easy to do (71%) and WhatsApp group texting information for mutual support was very difficult to comprehend for participating actively (87%). Concerning access, 78% of participants answered that they have difficulties with the availability of digital devices (i.e., smartphones, computers, or tablets), internet connectivity and privacy at home or work for undergoing digital treatment.