Well in India we have a payment system UPI , which can can pay/trasfer money using QR codes instantly.
And over last few years it eventually moving to be the most widely used channel by public as well as businesses.
Here is a link of article which throws some light on it’ usage.
https://www.livemint.com/Industry/EDjWaxcybiRqqGGnlnPjqN/UPI-transactions-in-October-increases-by-19-in-volume.html?facet=amp
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