Don't think that just because he had obtained Divine Blood twice before, one was a reward for saving Tilamei's farmland and indirectly, Neustadt City. The second time was from his own abilities to discover the Divine Blood.
For ordinary councilmen to exchange for Divine Blood is nearly impossible, unless they have a Great Councilman as a powerful elder like Nois.
Divine Blood is generally first divided among the wizards who kill the true avatars of the divine, and only when they no longer need it, will the slots for exchange be released.
These slots are also prioritized for the stronger Great Councilman, unless the Great Councilman does not need it and has spare slots, then it would be further passed down to ordinary councilmen.
