I am not familiar with coinomi but using https://etherscan.io/ enter your public ethereum address and check to see if your EOS tokens are there. You will see a drop down box with "Token Balances" next to it, click on that to view all tokens linked to the address. If you haven't already don't forget to register your ethereum address at https://eos.io/ to receive the real EOS on launch date (June 1) I use Metamask to do this. All instructions are on the eos.io site if you get stuck.