I said it long time ago, but will again...
Nobody want to use Coss, it's volume is $700k if you exclude Coss token
And can't even handle this volume 4 months after going live. Even HitBTC's COSS volume is increasing because people don't want to use that crap.
They have no volume and asking 100 000 COSS fee to list new coins.
And competitors are coming - NEXT will give 100% profit share, PayFair (bit different as it is an escrow) shares 80% with the holders... and these are about to launch.