You can vote here
https://www.kingcoiny.com/index.php?page=votingAlso it's not the devs job to get the coin on an exchange but the community's. If you want the coin, send a message to Polo, submit TRK on their voting list. Tweet to Bittrexx etc.
So what have you done today to help the coin?
the dev is a part of the community, if not the spokesperson of the community. So he has every responsibility, just like everyone else, to contact those exchanges and get his coin listed. Getting the coin on an exchange is a crucial part of the coins development, so the dev should have been the first person to contact exchanges.
I have already contacted those exchanges, before I even posted my FIRST comment about an exchange. You see, I act first then raise the concern.
Now get out there and help get this coin on an exchange.