Nah, it's not a scam, legit OTC exotic options. However, withdrawing your money can take up to 7 days total. Same as every CFD/OTC Options provider as they are the counterparty, thus making money if YOU loose. Better to stick with brokers who merely execute your trades on your behalf as you'll be happy when you win and your broker will be happy, too because you'll place more orders.
Nevertheless, if you like Binary OTC options, binary.com is probably one fo the most serious providers and they pay out. I just wouldn't recommend any CFD or OTC options brokers due to aforementioned conflicts of interest. But if this is really what you want to trade, go ahead.