If you're looking for a good Spanish teacher in the Recoleta area, I would like to recommend my dear friend Adriana.
She tailors her classes to suit your needs, can undertake classes in private, with a partner or small group, and she is very reasonable.
She's an amazing teacher, her English is absolutely perfect and she is lovely person, with plenty of stories to share and knowledge of this great city.
You can reach her directly at firstname.lastname@example.org.
All the best!