This rule applies to premium payment amortization for "tail" malpractice insurance offered to the medical and allied health care providers enumerated in subsection 1.1 herein whose prior "claims made" malpractice insurance policy had been in effect for at least sixty (60) days: Provided, That each quarterly amortized premium paid pursuant to this rule shall not be less than seven hundred fifty dollars ($750.00).
W. Va. Code R. § 114-30-3