Sorry, I couldn't find pricing data for that day. The closing price for Bitcoin (BTC) in terms of ZAR on July 31, 2020 was 193,233.22. It was up 3.3% for the day. The latest price is 1.9M.
DATE
OPEN
HIGH
LOW
CLOSE
July 31 2020
187,040.59
—
—
193,233.22
Daily pricing data for Bitcoin dates back to 7/14/2010, and may be incomplete.