Found more info on listing a coin on cryptopia.
https://www.cryptopia.co.nz/Forum/Thread/1484basically you need to pay 2,500,000 DOT to get it considered

everyone complaining about the price...
trading on cryptopia 2,500,000 DOT = 9.5btc
If we can raise the funds then i'd be happy to put forward the application. But that is far too much imo for listing.
It is subject to developer review, but if rejected the DOT will be returned so could be resold and redistributed back to people.
Thoughts? I think exchanges are overstretched atm and new listings is not high on their agenda.
Fuzzybear