Indonesia is not only Southeast Asia’s most populated country, but also one of the world’s fastest-growing economies. But many people, especially outside of major cities, still lack access to basic financial services like bank accounts. Payfazz is one of several tech startups focused on solving that problem by finding innovative ways to give more Indonesians access to financial services. The company announced today that it has raised a $53 million Series B led by B Capital and Insignia Ventures Partners. Previous investors, including Tiger Global, Y Combinator and ACE &…