No person may maintain an action hereunder pursuant to a violation of subsection (c) of Section 8-6-3 based solely on the fact that an investment adviser representative other than the one from whom the person received advice is unregistered.
An action based on a violation of subsection (c) of Section 8-6-17 and this section may not prevail where the person accused of the violation sustains the burden of proof that he did not know, and in the exercise of reasonable care, could not have known of the existence of the facts by reason of which the liability is alleged to exist.
Ala. Code § 8-6-19 (1975)