(1) Any individual sustaining damages and losses shall have, at his option, a direct action against the insurer under the terms and limitations of the policy, which action he may exercise against the insurer only or against the insurer and the insured jointly. The direct action against the insurer may only be exercised in Puerto Rico. The liability of the insurer shall not exceed that provided for in the policy, and the court shall determine not only the liability of the insurer, but also the amount