I don't find any data of it on coingecko so it's pretty good that it's not there. And if someone out there who's using them, get out of there as soon as possible.
Honestly, I just heard about BitxOnex Exchange. I looked at Coinmarketcap, and there is no data to display there. Most likely this exchange has a lot of problems, and I'm sorry about what happened to you. I can only suggest to doing an analysis before jumping into the exchange, especially the new exchanges that you want to try. Make sure they are a trustworthy exchange and have supporters in the community. I prefer to use the old exchange because they have proven to be kind. It's all about the risk of losing money, and making sure you work with someone you can trust. I'm appreciate what you share here, so that we can be careful.
That is the reason why many of us just stays on the known and reputable exchanges than going on with something new. That's okay if you're into new exchanges but to avoid future problems, it's best to stick to the ones but the disadvantage of it is you'll be subject into KYC.
Well, that's common nowadays and it's up to the user if they're going to stick around or not. But as always, avoid the likely scam exchanges.