So I'm on the give me first, then we can talk part of the quest (lv.56 Valencia II) 

I have stole all 3 items he has told me to steal and then went back to him and tells me I need to speak to 3 different people and give them each 1 of the items but in order for me to do this I need to buy the knowledge from afuaru himself I believe that is what I have read when I have looked up information on this quest, but for me to buy it I need the amity and to get amity I need knowledge with afuaru I'm currently on 3/4 how can I get 4/4 with him so I can start the amity game??? 

Also I have done Valencia I and gave the fake key to the king and got the ring  and spoke to the black spirt after doing so 

Hello! I had the same issu, I finally ended up giving him lots of gift and it did the job. Raised enough amity just with that and therefore, skipped the converse to gain amnity phase. Hope it helps !