After getting some feedback from various users here on the HIVE blockchain, ArDax.com.ar an exchange located in South America with its home office in Buenos Aires is offering and on and off ramp for FIAT to HIVE users. Please go ahead and use your favorite search engine to find us at https://ArDax.com.ar we are located near the Recoleta Mall. And are here at your service. 
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From @unit102