Charging later at will is not allowed by regulations in India. An explanation of why it might be so - https://news.ycombinator.com/item?id=9206182 https://news.

Charging later at will is not allowed by regulations in India. An explanation of why it might be so - https://news.ycombinator.com/item?id=9206182 https://news.ycombinator.com/item?id=9206182