End of 2015 I wanted to advertise as an advertiser on clicksor and they told me that $1,000 was the minimum but if I wasn't happy with ROI I could request a refund. Traffic is the worst that I bought, though I buy in about 20 other ad networks Normally my bounce rate is around 50%, that's normal. But with them it was everytime at 99,9% lol That's mean nobody visit the website because it's only fake. When I wanted to stop and request a refund I still had about $850 in my account. And since I have spoken with lots of people but nothing is doing and they are no longer responding to messages or to skype the last days .... That's just my experience with them, don't loose your money with them.