Each member of a group of affiliated insurers shall be considered a separate insurer for purposes of the act. Therefore, if one insurer, which is a member of a group of affiliated insurers, cancels or refuses to renew a particular policy but at the same time offers to arrange insurance for the applicant or insured with another member of the same group, there will be considered to have been a cancellation or refusal to renew by the first insurer.
31 Pa. Code § 61.3