Revolut Ltd. and its backers are nearing the end of a $3 billion fundraising spree that values the London-based fintech behemoth at $75 billion.The company has begun informing investors about the allocation of shares they’ll receive as part of the oversubscribed funding round, according to people familiar with the matter. Revolut ultimately managed the fundraising on its own, without the help of its typical coterie of bankers, the people said, asking not to be identified discussing non-public in...