I can't find anything about it on the internet except this:
https://www.reddit.com/r/DarkNetMarkets/comments/701mq1/is_coinsimplecom_a_legitimate_website/ where it's someone asking about the service just like you. I would stay away from them, It really not worth it and having them asking for payment to be sent to in Family and friends means that you won't be able to chargeback. If you want a site where Skrill and PayPal are accepted, you have Paybis, Virwox.com, Paxful and many others.
Thanks for you reply Sir. I appreciate it. Thanks for bringing up the point "having them asking for payment to be sent to in Family and friends means that you won't be able to chargeback." I completely missed it in first glance on their site. You are right, I wont use it. Thanks again. Regards.