English language volunteering at U of Guanajuato?

[Sue100]

Does anyone know anything about volunteering to help people with their English at the Centro de Aprendizaje Auto Dirigido de Idiomas (CAADI) at U of G? It is in a very hard-to-find building at the end of Calle del Sol, close to Templo de la Compañía (at least I think it is Templo de la Compañía).

I met a woman from Quebec last year and she was helping people with their French there as a volunteer.