Enen if the email is true and someone has your personal information, how is paying them in anonymous bitcoin to stop them from selling it to someone else?
That's also a common scam used to try and get foolish people to give the scammers something for nothing, as the following Federal Trade Commission article outlines.
Did you get an email saying your personal info is for sale on the dark web? | Consumer Advice
The recommendations there or in the Q&A Assist response that detail things you can do to help confirm whether your personal information is safe or there are other steps you need to take to protect it are really the only things worth spending time on in either case, since once the info is out, it's not possible to put the genie back in the bottle no matter how much you pay someone.
Rob