You got across the dumbest hackers of the entire solar system..they found a remote exploit on iOs and all they do is threatening a random guy ? Apple pays dearly, up to 200,000$ and would probably offer an 8 digits job to someone who found such an exploit and a third party like Zerodium offers 2 million bucks for remote jailbreaks on iOs.
There’s no need to remove a chip, to disable Bluetooth just enter into Settings/Bluetooth and turn it off. If someone blackmails you go to the police, not to Apple support, that’s a criminal offense.