Ooh... a double episode in one week.
When someone invokes a policy document rather than addressing a concrete breach, it’s often a sign that they’re aware of the weakness in their position but hope to scare you off through procedural noise. It's becoming increasingly apparent that Ms Dorans is avoiding the substantive issues raised and retreating behind vague references to internal policies.
This behaviour indicates considerable discomfort with the BPA’s position. If the facts were on your side, one might expect a straightforward and timely response, not evasive insinuations.
A subtle nod in a future letter, referring her to the answer given in Arkell v Pressdram (1971) wouldn’t go amiss if the obfuscation continues — though perhaps with the finesse of a footnote or a parting “I believe we’ve now exhausted polite correspondence”.