While the pandemic has left some startups strapped for cash, the aptly-named Brazilian neobank Nubank is swimming in it. This morning, the company announced that it has raised a $400 million Series G round, putting their total funding to date at $1.2 billion. But even more remarkable, in addition to their new $25 billion valuation (up from $10 billion in 2019), is their customer base of 34 million users, which they’ve built up since the fintech’s launch in 2013. “We’ve gone from 12 million customers in 2019 to 34 million solely based…