It's been a long time not connected with coss exchange, lastly I didn't experience any problems with that exchange. There have been many complaints in this thread due to the loss of their coss tokens after the swap and unfortunately, the team did not respond, they did not realize the impact of the risk of a bad reputation from the community and I think this case is worth discussing in the reputation or scam association.
That's right, I also haven't used COSS exchange for a long time, but if there is news about the number of complaints due to losing the exchange users' tokens, then I will avoid this exchange and will never use it again in the future, even in my past also never experienced problems with COSS exchange.