Accrue automatically? 16:21 Jul 10, 2012
Yes, I had actually considered "be payable automatically", with "automatically" as the translation of "naturalmente", but was a bit stumped by the next part, where a request is required. Thinking it over a bit more now, perhaps if the dictionary translation "accrue" (accumulate) is used as the translation of "devengar" instead of "be payable", the sentence could make a bit more sense. The interest accues automatically, necessitating a payment... in order to receive this payment, the contractior must request it. What do you think? | 
