"CAUTION"

There are indeed a lot of fraudulent online exchanges and wallet providers. The same is true for displeased customers.
I suggest you take a tour at reclaimmycoin.com and get to known which providers are trustworthy. For trading cryptocurrencies, if you also have been defrauded by any trading platform you can appeal to them and they will help you recover your assets

"withdrawal issues"

Always withdrawal issues as I have read so much reviews about them.