At the end of March, TechCrunch reported that buzzy startup Pipe — which aims to be the “Nasdaq for revenue” — had raised $150 million in a round of funding that values the fintech at $2 billion. Well, that deal has closed and in the end, Miami-based Pipe confirms that it has actually raised $250 million at a $2 billion valuation in a round that was “massively oversubscribed,” according to co-founder and co-CEO Harry Hurst. “We had originally allocated $150 million for the round, but capped it at $250 million…