No scam, they only have huge traffic on transaction and if it is your first withdrawl it may take up to 24 hours, they have fixed that btw.

As far as I know it is not a scam, because I have been withdrawing consistently for a few months now without any problems. There are complaints though about the speed of report, as well as lack of management.

There is definitely room to improve, but just check with their report again. They should give you a response.