I purchased neverwinter currency off of them 4 times. Twice I had to make a paypal dispute to get them to even acknowledge that they owed me anything. The second time, now, they will not reply to me in chat except to say that they will not deliver the items i bought because I made a dispute. The irony is, i made a dispute because they didn't deliver the items i bought in the first place.
The site is run by a bunch of sweat shop rejects out of china. They are not reliable and will make you harass them to get what is owed to you. Even then they might make up some BS or completely ignore you once they have your money. Use at your own risk.