on their website they state that: Processing the withdrawal rarely takes more than 48 hours. Don't send email about it unless you did not receive it within 7 days.
i don't think it is a scam, it pays a long time already and from my personal experience i can say that the only problem is that they often ignore even that 7 days term, i got paid like after 20 days or smth after reaching the minimum amount for payment. and i didn't even wrote to their support, it seems like they pay whenever they feel like it but they pay, don't worry, i think they are busy with other things and checking this matter only once in a while