It would be uncouth of me to say "I doubt that this comment is a literally accurate transcription of something which happened in consensual reality" but if anyone is hanging around the phone wondering "That's funny, Uber never called me": unless you happen to run a VC firm, it's highly, highly unlikely that a late-stage startup raising e.g. a D round at a multi-billion dollar valuation is interested in making your acquaintance as an investor. At seed stage or maybe an A, sure, a $25~$50k check from a technologist is still a meaningful amount of money (and valuations would probably be single-digit millions), but even if there were no legal issues at play, no firm raising on a billion dollar valuation will speak to you because the time it takes to close you would be better spent on convincing someone who can write a check that matters.