Lillehoff is bug?

I've been looking for this character for several days:

https://es.wowhead.com/npc=32540/lillehoff

Whenever I go to look for him he is never here and I would like to buy him the reins of the mammoth since at this moment I am exalted with this faction.

No, it isn't bugged. You need to do the quest-line, it doesn't matter if you bought rep with emblems, and are exalted. It's a 23 long quest chain, and starts with https://www.wowhead.com/quest=12843/they-took-our-men