"I have no interest whatsoever in meeting you," O'Connor wrote on her Facebook page in response to Cyrus' tweets that she was too busy to reply to O'Connor's first two open letters.

"You had plenty of time yesterday to abuse Amanda Bynes .. an entirely innocent party.. and myself.. who also did nothing to deserve your abuse," O'Connor added, referencing Cyrus' earlier tweets that mocked O'Connor's past while simultaneously throwing Byne's under the proverbial bus. "Along with every other sufferer of mental health problems and every person who suffered abuse at the hands of priests."

O'Connor reiterated from her second letter that Cyrus needs to apologize both to her and Bynes or face the consequences in court. "If you cannot apologize I will have no choice but to bring legal proceedings against you since it is extremely hard to be given work when people think one is suffering from mental illness," O'Connor posted.