Sounds like that company was as shady as rocketreach... someone who threatens their own customer in bad faith (or negligence) just for 30k is likely to be more trouble and of less value to you in the future if that's their focus of increasing revenue.
Good call ditching them.
[edit] speculative aside...
What if they were intentionally feeding rocketreech miss-information? it might seem far fetched but these personal data collecting companies like rocketreach or even equifax obtain their information from a variety of untrustworthy sources.
I was a victim of this through my own foolishness a couple years ago:
I was using a car insurance comparison site and guessed one piece of the required information I couldn't completely remember - a speeding ticket date - I couldn't remember the exact year. Turns out I entered it exactly one year off, and it was so long ago anyway that it had no bearing on the quotes.
After continuing with my existing insurer, a few months later my insurer sent me a demand for a rather large quantity of money... that's right, they attempted to backcharge me for 5 years worth of insurance over an extra speeding ticket they had "discovered". Obviously there was no way I would pay them but it was extremely difficult to convince them to stop harassing me for this money even though they had no proof. Even after demanding they provide evidence of their discovery which they refused.
It's scary how easy this is to do, and I wasn't even trying.