Paying to get listed on an exchange isn't really what we had in mind since we believe there are much better ways to spend our money, BUT if this is something the community really wants we will promptly consider it.
It is just a theory but it is possible that yobit and c-cex are not considering adding your coin because you hosted the ico elsewhere. Getting listed on any smaller exchange would only do harm for the coin, so maybe there is no other way then paying for a larger exchange. You may still ask yobit and ccex if they are willing to add your coin and see what do they say.