I sold Viou 22.85 Billion coins (yes, you read that correctly). We made the exchange in several transactions, as large as 5B at a time. I went first every time, and Viou paid instantly each time, even for transactions worth in excess of 2k USD. He was extremely helpful in pointing out scammers to avoid (and backed up his claims with photo proof). Couldn't have asked for a better transaction. Best of luck to you.